Patent
   D577519
Priority
Oct 18 2007
Filed
Oct 18 2007
Issued
Sep 30 2008
Expiry
Sep 30 2022
Assg.orig
Entity
unknown
13
6
n/a
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.

Su, Tung-Hua

Patent Priority Assignee Title
10264889, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
10842281, Sep 20 2012 Steelcase Inc. Control assembly for chair
11229294, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
11304528, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
11464341, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
8998339, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
9408467, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
9826839, Sep 20 2012 Steelcase Inc. Chair assembly with upholstery covering
D596430, Mar 19 2009 Chair backrest
D596885, May 05 2009 Chair backrest
D600477, May 18 2009 Chair backrest
D604071, Jul 30 2009 Chair backrest
D660621, Nov 04 2011 Chair backrest
Patent Priority Assignee Title
D540081, Aug 18 2006 Chair backrest
D540579, Aug 18 2006 Chair backrest
D540580, Dec 31 2005 Chair backrest
D544735, Nov 23 2006 Chair backrest
D553886, Mar 25 2007 Chair backrest
D557028, Jun 16 2007 Chair
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