Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD575085 S1
Publication typeGrant
Application numberUS 29/305,901
Publication date19 Aug 2008
Filing date30 Mar 2008
Priority date30 Mar 2008
Publication number29305901, 305901, US D575085 S1, US D575085S1, US-S1-D575085, USD575085 S1, USD575085S1
InventorsTung-Hua Su
Original AssigneeTung-Hua Su
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chair backrest
US D575085 S1
Abstract  available in
Previous page
Next page
  1. The ornamental design for a chair backrest, as shown and described.

FIG. 1 is a perspective view of a chair backrest showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
USD673401 *12 Jun 20121 Jan 2013Humanscale CorporationChair support structure
USD696055 *30 Jul 201324 Dec 2013Steelcase, Inc.Chair back
USD696545 *30 Jul 201331 Dec 2013Steelcase, Inc.Rear surface of a chair back
USD696546 *30 Jul 201331 Dec 2013Steelcase, Inc.Chair back
USD767321 *19 Aug 201527 Sep 2016Yang XingchangChair back
U.S. ClassificationD06/716.4, D06/366