Chair backrest

The ornamental design for a chair backrest, as shown and described.

FIG. 1 is a perspective view of a chair backrest according to the present invention;

FIG. 2 is a front view of a chair backrest according to the present invention;

FIG. 3 is a rear view of a chair backrest according to the present invention;

FIG. 4 is a profile view of a chair backrest according to the present invention;

FIG. 5 is a second profile view of a chair backrest according to the present invention;

FIG. 6 is a top view of a chair backrest according to the present invention; and,

FIG. 7 is a bottom view of a chair backrest according to the present invention.

Patent	Priority	Assignee	Title
D741099,	Sep 26 2013	Okamura Corporation	Chair
D779252,	Feb 12 2016	HAWORTH, INC	Back support for a chair
D779253,	Feb 12 2016	HAWORTH, INC	Back support for a chair
D807658,	Aug 31 2016	Toyota Jidosha Kabushiki Kaisha	Seat for a motor vehicle

Patent	Priority	Assignee	Title
7837272,	Oct 13 2004	Okamura Corporation	Chair and the structure for stretching a mesh over an element of the chair
D527920,	Sep 27 2004	Okamura Corporation	Chair
D540578,	Sep 09 2005		Backrest
D596430,	Mar 19 2009		Chair backrest
D665589,	Mar 23 2011	Topstar GmbH	Chair
D666032,	May 03 2012		Chair backrest
D675463,	Aug 30 2010	BOCK NORTH AMERICA LTD	Chair

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