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
D471042 March 4, 2003 Schmitz
D539578 April 3, 2007 Chen
D557025 December 11, 2007 Chen
D580199 November 11, 2008 Su
D600477 September 22, 2009 Su
D646092 October 4, 2011 Romero
D660621 May 29, 2012 Su
D660622 May 29, 2012 Su
D683172 May 28, 2013 Su
D683574 June 4, 2013 Su
D697732 January 21, 2014 Wan
D703457 April 29, 2014 Plikat
D766605 September 20, 2016 Li
Patent History
Patent number: D773874
Type: Grant
Filed: Apr 8, 2015
Date of Patent: Dec 13, 2016
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Ricky Pham
Application Number: 29/523,236
Classifications
Current U.S. Class: D6/716.4; D6/366