Chair backrest

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Description

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 top view of a t chair backrest according to the present invention; and,

FIG. 6 is a bottom view of a chair backrest according to the present invention.

Claims

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

Referenced Cited
U.S. Patent Documents
D637423 May 10, 2011 Behar et al.
D639091 June 7, 2011 Behar et al.
D650206 December 13, 2011 Behar et al.
D652657 January 24, 2012 Behar et al.
D653061 January 31, 2012 Behar et al.
D657166 April 10, 2012 Behar et al.
D673385 January 1, 2013 Lu
20120007400 January 12, 2012 Behar et al.
Patent History
Patent number: D686440
Type: Grant
Filed: Aug 22, 2012
Date of Patent: Jul 23, 2013
Inventor: Yang Xingchang (Foshan)
Primary Examiner: Mimosa De
Application Number: 29/430,150
Classifications
Current U.S. Class: D6/716.4; D6/366