Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US412799021 Jan 19775 Dec 1978Drainage structure forming method
US42757576 Aug 197930 Jun 1981Manhole structure and method of making same
US44729119 Feb 198225 Sep 1984Pont-A-Mousson S.A.
Emile Pierre Roche
Construction for access to a buried pipeline
US457445414 Jan 198511 Mar 1986Chubb & Son's Lock and Safe Company LimitedMethod of constructing fire resistant enclosures
US494829618 Dec 198714 Aug 1990Huntina Pty. Ltd.Swimming pool construction
US49976022 Oct 19895 Mar 1991Action Products Marketing CorporationCast-in-place manhole liner method
US501731327 Sep 199021 May 1991Action Products Marketing CorporationMethod and means for repairing existing manhole
US510644012 Apr 199121 Apr 1992Method for repairing manholes or wetwalls
US518986112 Nov 19912 Mar 1993Sewer chimney coupling and method of building a sewer chimney
US526329827 Jul 199223 Nov 1993Procedure for making in-situ manholes for underground electric and telephone lines ductwork
US527119321 Feb 199221 Dec 1993Concrete products and methods of fabrication
US529371911 Jan 199315 Mar 1994Sewer chimney coupling
US534572817 May 199313 Sep 1994Sewer chimney coupling
US538666915 Mar 19937 Feb 1995Corrosion resistant leakproof plastic manhole system
US539847725 Jun 199321 Mar 1995Georg Prinzing GmbH & Co. KG Betonformen-und MaschinenfabrikShaft elements made from molding material
US548240325 Jun 19939 Jan 1996Hail Mary Rubber Company, Inc.Sewer construction and pipe encasement therefor
US552500714 Mar 199511 Jun 1996Hail Mary Rubber Co., Inc.Sewer construction
US587950119 Dec 19969 Mar 1999Illinois Tool Works, Inc.Method of sealing sewer systems
US601891417 Dec 19961 Feb 2000Shonan Gosei-jushi Seisakusho K.K.
Yokoshima & Co.
Liner for manhole and a method for lining a manhole
US626363729 Oct 199924 Jul 2001Prefabricated emergency shelter
US81770282 Dec 200515 May 2012Bortana Pty. Ltd.Ladderway system for underground raises