Patent
   D641574
Priority
May 29 2010
Filed
May 29 2010
Issued
Jul 19 2011
Expiry
Jul 19 2025
Assg.orig
Entity
unknown
5
9
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
D698171, Mar 15 2012 34TH STREET PARTNERSHIP, INC Chair
D724879, Sep 12 2014 DONGGUAN KENTEC OFFICE SEATING CO , LTD Chair back
D907423, May 23 2019 MILLERKNOLL, INC Chair
D960597, May 23 2019 MILLERKNOLL, INC Chair
D978592, Jan 15 2020 Merits Health Products Co., Ltd. Back element of a chairback
Patent Priority Assignee Title
7604299, Dec 08 2007 Backrest assembly
D540579, Aug 18 2006 Chair backrest
D544720, Apr 06 2006 Chair
D553886, Mar 25 2007 Chair backrest
D572923, Feb 07 2008 Chair
D575085, Mar 30 2008 Chair backrest
D575969, Jul 20 2007 Chair backrest
D577521, Apr 23 2008 Chair backrest
D580689, Apr 22 2008 Chair back
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