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 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.

Claims

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

Referenced Cited
U.S. Patent Documents
D527920 September 12, 2006 Giugiaro
D540578 April 17, 2007 Chen
D596430 July 21, 2009 Su
7837272 November 23, 2010 Masunaga et al.
D665589 August 21, 2012 Wagner
D666032 August 28, 2012 Su
D675463 February 5, 2013 Collinson et al.
Patent History
Patent number: D686441
Type: Grant
Filed: Jan 29, 2013
Date of Patent: Jul 23, 2013
Inventor: Yang Xingchang (Guangdong)
Primary Examiner: Mimosa De
Application Number: 29/444,278
Classifications
Current U.S. Class: D6/716.4; D6/366