Patent
   D660621
Priority
Nov 04 2011
Filed
Nov 04 2011
Issued
May 29 2012
Expiry
May 29 2026
Assg.orig
Entity
unknown
12
12
n/a
The ornamental design for a chair backrest, as shown and described.

FIG. 1 is a perspective view of the 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
D666032, May 03 2012 Chair backrest
D673401, May 13 2005 Humanscale Corporation Chair support structure
D683172, Sep 14 2012 Chair backrest
D683574, Aug 15 2012 Chair backrest
D772592, Nov 01 2015 Chair backrest
D773874, Apr 08 2015 Chair backrest
D774345, Mar 20 2015 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D774346, Mar 20 2015 Zhongshan Shi Songlin Furniture Co., Ltd.; ZHONGSHAN SHI SONGLIN FURNITURE CO , LTD Chair back frame
D790895, May 01 2016 Chair backrest
D807448, Jun 01 2015 Dyaco International Inc. Fall prevention attachment for exercise machine
D809842, Jun 22 2017 Chair backrest
D953086, May 23 2021 Guangzhou Ceyou Furniture Co., Ltd. Chair backrest
Patent Priority Assignee Title
D493627, Sep 27 2002 Arm chair
D514831, Oct 02 2003 Zhejiang Himax Furniture Industry Corp., Ltd. Chair
D540081, Aug 18 2006 Chair backrest
D540579, Aug 18 2006 Chair backrest
D540580, Dec 31 2005 Chair backrest
D543398, Jun 19 2006 Chair backrest
D544735, Nov 23 2006 Chair backrest
D557028, Jun 16 2007 Chair
D577519, Oct 18 2007 Chair backrest
D580199, Jul 02 2008 Chair backrest
D596430, Mar 19 2009 Chair backrest
D596885, May 05 2009 Chair backrest
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