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
D540080 April 10, 2007 Su
7347495 March 25, 2008 Beyer
D580199 November 11, 2008 Su
D582170 December 9, 2008 Chi
D600477 September 22, 2009 Su
D660621 May 29, 2012 Su
D661136 June 5, 2012 Su
D683172 May 28, 2013 Su
D683574 June 4, 2013 Su
D773874 December 13, 2016 Su
Patent History
Patent number: D809842
Type: Grant
Filed: Jun 22, 2017
Date of Patent: Feb 13, 2018
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/608,464
Classifications
Current U.S. Class: D6/716.4; D6/366