Chair backrest

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Description

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.

Claims

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

Referenced Cited
U.S. Patent Documents
D534384 January 2, 2007 Su
D540080 April 10, 2007 Su
D540580 April 17, 2007 Su
D543398 May 29, 2007 Su
D580198 November 11, 2008 Wu
D600477 September 22, 2009 Su
D646915 October 18, 2011 Schweikarth et al.
D660621 May 29, 2012 Su
D661136 June 5, 2012 Su
D661137 June 5, 2012 Su
Patent History
Patent number: D666032
Type: Grant
Filed: May 3, 2012
Date of Patent: Aug 28, 2012
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/419,957
Classifications
Current U.S. Class: D6/502