Patent
   D600477
Priority
May 18 2009
Filed
May 18 2009
Issued
Sep 22 2009
Expiry
Sep 22 2023
Assg.orig
Entity
unknown
8
4
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
8240771, May 13 2004 Humanscale Corporation Mesh chair component
D623449, May 13 2005 Humanscale Corporation Mesh backrest for a chair
D666032, May 03 2012 Chair backrest
D673401, May 13 2005 Humanscale Corporation Chair support structure
D698591, Dec 05 2012 SIDIZ, INC. Chair back
D750911, Sep 12 2014 DONGGUAN KENTEC OFFICE SEATING CO , LTD Office chair
D773874, Apr 08 2015 Chair backrest
D809842, Jun 22 2017 Chair backrest
Patent Priority Assignee Title
D540579, Aug 18 2006 Chair backrest
D540580, Dec 31 2005 Chair backrest
D577519, Oct 18 2007 Chair backrest
D582170, May 16 2008 Chair
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