WO2005051625A2 - Methods and apparatuses for the formation of blow molded objects - Google Patents
Methods and apparatuses for the formation of blow molded objects Download PDFInfo
- Publication number
- WO2005051625A2 WO2005051625A2 PCT/US2004/039245 US2004039245W WO2005051625A2 WO 2005051625 A2 WO2005051625 A2 WO 2005051625A2 US 2004039245 W US2004039245 W US 2004039245W WO 2005051625 A2 WO2005051625 A2 WO 2005051625A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blow
- cavity
- protuberance
- piston
- molded object
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C2049/4807—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity by movable mould parts in the mould halves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
Definitions
- the present invention relates to blow-molded components and to methods and apparatuses for creating blow-molded components. More particularly, the invention relates to double-wall blow-molded components with one or more protuberances not abutting the parting line and to methods and apparatuses for creating the same.
- blow molding as a method for manufacturing various sorts of articles is generally well known.
- this process involves the use of a mold consisting of two separate halves or portions having cavities of particularly desired shapes and sizes.
- a mold consisting of two separate halves or portions having cavities of particularly desired shapes and sizes.
- one extrudes a large-diameter, sealed tube of molten material (commonly referred to as a "parison"), places the tube between the mold halves, and closes the mold around the tube.
- the mold halves are closed around the tube at what is referred to as the "parting line.”
- Fluid pressure is then introduced into the tube, forcing the molten tube against the walls of the cavities, conforming the tube to the shape thereof.
- the pressure is maintained until the molten material cools and solidifies.
- the pressure is then released, the mold halves are pulled apart, and the hardened article is ejected therefrom.
- protuberances On blow-molded parts. Examples include hinge receptacles, handles, tabs to accept mounting screws, and snap bosses for joining blow-molded components. Certain prior art forms these protuberances by pushing and compressing the molten material of the blow mold parison during the mold close portion of the molding cycle. The pushing and compressing is accomplished by the closing of the two mold halves. It is therefore always in a plane generally perpendicular to the parting line of the mold, although incidental lateral transfer sometimes occurs when a shaping wedge of angled leading surface is part of one or both halves of the mold.
- integrally formed, permanent interference snap bosses is well known as an assembly method to join molded or fabricated plastic components into a finished article.
- This technique eliminates the need for additional attachment pieces, thereby saving time and materials cost in the assembly process. It also avoids the need for adhesives, which increase costs and potentially introduce appearance problems through smearing or misapplication of the adhesive.
- Blow-molded double-wall components lend themselves to this attachment method in that they are somewhat resilient, which facilitates assembly, and yet rigid by reason of the structural qualities of the double wall.
- Certain proposed techniques provide a blow-molding apparatus with an inwardly projecting hollow boss away from a parting line by retracting a piston extended through the mold into the parison during the blowing process.
- One disadvantage of such techniques is that it is unclear how they could be used to make a protruding boss away from the parting line, as opposed to an inwardly projecting hollow boss.
- a second disadvantage is that the resulting inward projection has a thinner wall than the rest of the blow-molded apparatus, as these techniques essentially stretch the wall of the apparatus to a greater distance without adding additional material.
- an apparatus for creating a blow-molded object with a protuberance which includes a mold having a molding surface against which blow-molding material is blown.
- the molding surface has a cavity therein, the cavity receiving at least some of the blow-molding material and having a first end and a second end.
- a piston is disposed within the cavity toward the second end of the cavity in a retracted position and is moveable toward the first end of the cavity in an extended position.
- the piston When during molding the piston is in the retracted position, at least some of the blow-molding material is urged from the first end of the cavity toward the second end of the cavity, and when the piston is moved to the extended position, at least some of the blow-molding material is urged back toward the first end of the cavity.
- the mold comprises a first portion and a second portion configured to be coupled along a parting line, and the piston is configured to move parallel to the parting line.
- the piston has a surface configured to mold at least some of the blow-molding material in a predetermined fashion.
- the cavity is configured to form a protuberance in a shape of a boss.
- the cavity is configured to form a protuberance in a shape of a tab.
- the cavity is configured to form a protuberance in a shape of a hinge receptacle.
- the cavity is configured to form a protuberance in a shape of a handle.
- a method for creating a blow-molded object with a protuberance includes the steps of: (i) providing a mold having a molding surface against which blow-molding material is adapted to be blown, the molding surface having a cavity therein, the cavity receiving at least some of the blow-molding material and having a first end and a second end; (ii) disposing a piston toward the second end of the cavity; (iii) blowing at least some of the blow-molding material against the molding surface while the piston is in a retracted position toward the second end of the cavity, such that at least some of the blow-molding material is urged from the first end of the cavity toward the second end of the cavity; and (iv) moving the piston toward the first end of the
- the piston has a surface configured to mold at least some of the blow-molding material in a predetermined fashion. In some embodiments, upon moving the piston to the extended position, excess material is urged into a void between walls of the double-wall blow-molded object. In some embodiments, the step of urging at least some of the blow-molding material back toward the first end of the cavity forms the protuberance.
- a blow-molded apparatus includes a first blow-molded object having a parting line, the first blow-molded object having a protuberance located in a position away from the parting line and a second blow-molded object having a cavity.
- the protuberance is sized and shaped to fit in the cavity, and couple the first blow- molded object and the second blow-molded object to form the blow-molded apparatus.
- a blow-molded object includes a molded surface corresponding to a blow-molding surface of a mold and a protuberance protruding from the molded surface, the protuberance having an outer surface partially corresponding to the surface of a cavity in the blow-molding surface of the mold and partially corresponding to a face of a piston disposed at an end of the cavity.
- the molded surface has a parting line, and the protuberance is located away from the parting line.
- the protuberance is configured to couple to the blow-molded object to a second blow-molded object.
- the face of the piston is configured to mold the outer surface of the protuberance in a predetermined fashion.
- the piston is configured to form a protuberance in a shape of a boss.
- the piston is configured to form a protuberance in a shape of a tab.
- the piston is configured to form a protuberance in a shape of a hinge receptacle.
- the piston is configured to form a protuberance in a shape of a handle.
- the piston is configured to form a protuberance in a shape of a tab to accept at least one screw.
- the protuberance is hollow, and a wall of the protuberance is more rigid than another wall of the blow-molded object. In some embodiments, the protuberance is solid, and the protuberance is more rigid than a wall of the blow-molded object. In some embodiments, the blow-molded object is a double-wall blow-molded object.
- Figure 1 A is an isometric view of a double-wall blow-molded object with a protuberance in accordance with certain embodiments of the present invention
- Figure 1 B is a partially cross-sectional view of the object with a protuberance of Figure 1A shown in conjunction with a mating object
- Figure 2 is a partially cross-sectional view of an apparatus for creating the blow-molded object with a protuberance of Figure 1A shown in a mold-open position
- Figure 3 is a partially cross-sectional view of the apparatus of Figure 2 at a time subsequent to closing the mold but prior to actuating the piston in accordance with certain embodiments of the present invention.
- Figure 4 is a partially cross-sectional view of the apparatus of Figures 2 and 3 at a time subsequent to closing the mold and subsequent to actuating the piston in accordance with certain embodiments of the present invention.
- the double-wall blow-molded apparatus 10 is comprised of a first double-wall blow-molded object 20 with a wall 25 and a second double-wall blow-molded object 50 with a wall 55. Both of the double- wall blow-molded objects are formed by blowing thermoplastic material against the molding surface of a mold. In certain embodiments, the thermoplastic material is a molten parison.
- the first blow-molded object 20 has a protuberance 40 formed as part thereof.
- the protuberance 40 is located so that it does not abut a parting line.
- the parting line and location of the protuberance 40 will be discussed in more detail below.
- Excess material 45, if there is any, is on the inside of the first blow-molded object 20.
- the protuberance 40 is a boss designed to fit into a cavity 65 in the second blow-molded object 50 in order to couple the two blow-molded objects 20 and 50 in order to form the blow-molded apparatus 10.
- the protuberance is what is referred to as a "snap boss," and the cavity is what is referred to as a "snap-receiving trough.”
- the protuberance 40 is placed in a rectangular opening adjacent to the cavity 65, and then slid parallel to the parting line, such that the protuberance 40 slides into the cavity 65 and locks into place.
- protuberance 40 is a tab, a hinge receptacle, a tab to accept a mounting screw, or another appendage or protuberance. If protuberance 40 is a tab to accept a screw, for example, it is possible that a second blow-molded component will have a similar tab, and the two components could be attached by inserting a screw or similar attachment in the two tabs.
- FIG. 2 an apparatus 100 for creating a blow-molded object with a protuberance in accordance with certain embodiments of the present invention is illustrated.
- the mold has two parts 110 and 120, which are shown as being separated in Figure 2.
- Mold part 110 has a molding surface 115
- mold part 120 has a molding surface 25.
- the molding surfaces will be described in more detail below.
- the apparatus 100 of Figure 2 also has a piston 140 with a piston end 145.
- the piston end 145 is configured so that it will shape the molten material in a predetermined fashion to form the desired protuberance.
- the piston is configured so that it can be moved from right to left, and thereby urge parison material in that direction.
- piston end 145 is configured so that the protuberance will be shaped like a boss, a tab, a hinge receptacle, a handle, or a tab to accept a mounting screw.
- the piston end 145 is configured so that the protuberance has a different shape.
- the piston 140 is also of a predetermined shape, and is not necessarily cylindrical. In certain embodiments the piston 140 is configured so as to move parallel to a parting line (not shown).
- a mold feature 127 is provided in the molding surface 125 of mold part 120 in the vicinity of the piston 140 (when the mold is closed).
- the purpose of mold feature 127 is to force substantially all of the available flash into cavity 180 as the mold closes, then to assist in forcing this flash into cavity 132 via piston 140 during subsequent movement thereof (as described in more detail below). If standard pinch-off techniques were employed rather then employing mold feature 127, a significant amount of material would likely be lost during mold close and then extension of the piston 140. Moreover, the pinch-off created by such techniques would likely break off from the high pressure created during extension of piston 140. These phenomena may lead to a protuberance having less strength than in the preferred embodiment, or even one where the protuberance is not completely formed.
- FIG 3 the apparatus 100 for creating a blow- molded object with a protuberance is shown at a time subsequent to closing the mold parts 110. 120 but prior to actuating the piston 140.
- the two mold parts 110 and 120 are adjoined at a parting line and define a molding surface.
- the parison material, at least a portion 150 of which is shown in Figure 3 is blown into the cavity 130 (now having a more distinctive shape than cavity 132 shown in Figure 2) in the molding surface.
- the cavity 130 has a first end 131 through which it receives a portion 180 of the blow-molding material, and a second end 133.
- the portion 150 of the blow-molding material is blown against the mold walls 115 and 125 of the mold parts 110 and 120, respectively, in order to form a blow molded object with a hollow portion 170.
- the piston 140 with shaped piston end 145 is disposed toward the second end 133 of the cavity 130.
- the piston is in a retracted position, whereby the parison material is urged from the first end 131 of the cavity 130 toward the second end 133 of the cavity 130 by the blow-molding process.
- the piston 140 is to be inside the cavity 130, but in other embodiments the piston 140 may be disposed at the second end 133 of the cavity 130, but partially or entirely outside of the cavity 130.
- the blow-molding process includes blowing a fluid into the mold in order to blow the parison material against the sides 115 and 125 of the mold parts 110 and 120.
- the fluid is a liquid, while in other embodiments the fluid is a gas, such as air.
- apparatus 100 for creating a blow- molded object with a protuberance is shown at a time subsequent to closing the mold parts 110, 120 and subsequent to actuating the piston 140.
- the same numbering scheme is used for elements in Figure 4 which are analogous to elements in Figures 2 and 3; however, this is not intended to limit the elements depicted in Figure 4 to be those depicted in .
- piston 140 has been moved from the retracted position (toward second end 133 of cavity 130) to an extended position (toward first end 131 of cavity 130), thereby urging potion 180 of the parison material back toward the first end 131 of the cavity 130, and forming the protuberance 190.
- Piston 140 is moved by an actuator 160, such as a motor or the like.
- the cavity 130 and the piston 140 with the piston end 145 are configured in a predetermined fashion so that the resulting protuberance 190 is shaped as desired in a predetermined fashion.
- the protuberance 190 has an outer surface of predetermined shape partially corresponding to the surface of the cavity 130 and partially corresponding to the face of the piston 140.
- the protuberance 190 is solid, and is more rigid than a wall of the blow-molded object 170.
- the protuberance 190 is hollow, but has walls more rigid than another wall of the blow-molded object 170.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04811887A EP1691960A4 (en) | 2003-11-25 | 2004-11-24 | Methods and apparatuses for the formation of blow molded objects |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52507703P | 2003-11-25 | 2003-11-25 | |
US60/525,077 | 2003-11-25 | ||
US10/995,662 | 2004-11-23 | ||
US10/995,662 US7393495B2 (en) | 2003-11-25 | 2004-11-23 | Methods and apparatuses for the formation of blow molded objects |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005051625A2 true WO2005051625A2 (en) | 2005-06-09 |
WO2005051625A3 WO2005051625A3 (en) | 2006-02-16 |
Family
ID=34595234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/039245 WO2005051625A2 (en) | 2003-11-25 | 2004-11-24 | Methods and apparatuses for the formation of blow molded objects |
Country Status (3)
Country | Link |
---|---|
US (1) | US7393495B2 (en) |
EP (1) | EP1691960A4 (en) |
WO (1) | WO2005051625A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7971940B2 (en) * | 2007-12-07 | 2011-07-05 | Rubbermaid Incorporated | Wheel design |
US8734709B2 (en) * | 2009-04-07 | 2014-05-27 | Graham Packaging Company, L.P. | Apparatus for reforming a portion of a plastic container |
US9387556B2 (en) * | 2012-02-22 | 2016-07-12 | Custom-Pak, Inc. | Method and system for assembling blow molded panels to create cantilevered structures |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1349584A (en) | 1962-02-09 | 1964-01-17 | Proplasto A G | Container made of thermoplastic synthetic material, method of manufacturing such a container and device for carrying out this method |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4177934A (en) * | 1975-10-04 | 1979-12-11 | Mauser Kommandit-Gesellschaft | Container and lid |
USRE31086E (en) * | 1976-09-10 | 1982-11-23 | W. R. Grace & Co., Cryovac Division | Plastic hinge construction |
DE2914938C2 (en) * | 1979-04-12 | 1982-11-11 | Mauser-Werke GmbH, 5040 Brühl | Device for blow molding a barrel |
US4304810A (en) * | 1980-07-17 | 1981-12-08 | Arco Polymers, Inc. | Apparatus for and method of making foam articles having densified reinforcing regions |
JPH0653459B2 (en) * | 1987-03-31 | 1994-07-20 | 山川工業株式会社 | Molding method for synthetic resin filler tubes |
JPS6434721A (en) * | 1987-07-31 | 1989-02-06 | Kyoraku Co Ltd | Mold for blow molding |
DE3731750A1 (en) * | 1987-09-22 | 1989-03-30 | Daimler Benz Ag | MULTILAYERED PLASTIC CONTAINER MADE BY CO-EXTRUSION BLOW MOLDS |
US5035604A (en) * | 1990-05-04 | 1991-07-30 | Phillips Petroleum Company | Blow molding and compression molding of an article |
US5433910A (en) * | 1991-05-14 | 1995-07-18 | Toyoda Gosei Co., Ltd. | Method of producing molding |
US5344596A (en) * | 1992-03-23 | 1994-09-06 | Icp Systems, Inc. | Method for fluid compression of injection molded plastic material |
US5200252A (en) * | 1992-07-20 | 1993-04-06 | Davidson Textron Inc. | Reinforced fastening boss and method for making the same |
US5308427A (en) * | 1992-09-28 | 1994-05-03 | Ford Motor Company | Method for fastening plastic articles |
JP3629097B2 (en) * | 1996-05-29 | 2005-03-16 | キョーラク株式会社 | Manufacturing method of housing panel |
MY124557A (en) * | 1996-09-10 | 2006-06-30 | Asahi Chemical Ind | Injection compression molding method |
DE19706838A1 (en) * | 1997-02-21 | 1998-08-27 | Moeller Plast Gmbh | Method and device for producing molded plastic parts by blow molding |
FR2771961B1 (en) * | 1997-12-10 | 2000-01-14 | Moulage Tech Soufflage Mts | MOLD FOR USE IN MOLDING PARTS BY A BLOWING TECHNIQUE |
JPH11254457A (en) * | 1998-03-12 | 1999-09-21 | Idemitsu Petrochem Co Ltd | Mold for molding laminated molded article and preparation of laminated molded article |
US6325962B1 (en) * | 1998-12-29 | 2001-12-04 | Visteon Global Technologies, Inc. | Method of manufacturing a blow molded hinge assembly |
US6435856B1 (en) * | 1999-09-24 | 2002-08-20 | Phillips Petroleum Company | Blow molding apparatus with fixedly positioned pin and reciprocating sleeve |
US20050084648A1 (en) * | 2003-10-16 | 2005-04-21 | Olsen Robert F. | Process for forming a part having an integral feature, a part produced thereby and apparatus therefor |
-
2004
- 2004-11-23 US US10/995,662 patent/US7393495B2/en active Active
- 2004-11-24 EP EP04811887A patent/EP1691960A4/en not_active Withdrawn
- 2004-11-24 WO PCT/US2004/039245 patent/WO2005051625A2/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1349584A (en) | 1962-02-09 | 1964-01-17 | Proplasto A G | Container made of thermoplastic synthetic material, method of manufacturing such a container and device for carrying out this method |
Also Published As
Publication number | Publication date |
---|---|
EP1691960A4 (en) | 2012-02-08 |
EP1691960A2 (en) | 2006-08-23 |
US20050112224A1 (en) | 2005-05-26 |
US7393495B2 (en) | 2008-07-01 |
WO2005051625A3 (en) | 2006-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX2008015787A (en) | Mould for production of extrusion-blow-moulded products with inserts on the inner side. | |
US8221673B2 (en) | Load bearing panel member and method for forming a load bearing panel member | |
JP2001001388A (en) | Blow molding method, blow molded article and blow mold | |
US7393495B2 (en) | Methods and apparatuses for the formation of blow molded objects | |
JP3241467B2 (en) | Method for producing resin tubular body | |
JP3236655B2 (en) | Blow-molded double-wall structure and method of manufacturing the same | |
JP3236680B2 (en) | Blow molded double wall structure | |
CN100544939C (en) | The method and apparatus that blow-molded object and assembly thereof and this object are shaped | |
JP2004098427A (en) | Method and apparatus for manufacturing hollow body | |
EP1908572A2 (en) | Dynamic device and method for forming a blow-molded article | |
JPH062366B2 (en) | Molding method for plastics blow molded products with embedded nuts | |
JP2001191373A (en) | Mold | |
KR100397964B1 (en) | Injection molding apparatus and method for automotive resonator | |
JPH06720U (en) | Injection mold | |
JP2009262433A (en) | Molding method of foamed resin molded product | |
CN220808295U (en) | In-mold spraying mold sealing structure for PUR | |
JP2001239573A (en) | Manufacturing method for hollow body and manufacturing device therefor | |
JP2006188074A (en) | Insert blow-molding method of panel | |
JPH0811155A (en) | Molding of hollow molded product | |
KR200209509Y1 (en) | Slide type of blow moulding | |
JP2982034B2 (en) | Injection molding method of resin molded product in which decorative member is integrally molded | |
JPH08183087A (en) | Manufacture of hollow body having threaded part | |
JP2631561B2 (en) | Blow product manufacturing method | |
JP3126178B2 (en) | Manufacturing method of hollow double-walled molded product | |
JPH06155502A (en) | Production of resin tubular body |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480039208.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004811887 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2004811887 Country of ref document: EP |