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
D493627 August 3, 2004 Ma
D514832 February 14, 2006 Tsai
D540080 April 10, 2007 Su
D540081 April 10, 2007 Su
D540579 April 17, 2007 Su
D540580 April 17, 2007 Su
D543398 May 29, 2007 Su
D579695 November 4, 2008 Wu
D580198 November 11, 2008 Wu
D580199 November 11, 2008 Su
D582170 December 9, 2008 Chi
D596430 July 21, 2009 Su
D604071 November 17, 2009 Su
Patent History
Patent number: D661136
Type: Grant
Filed: Jul 8, 2010
Date of Patent: Jun 5, 2012
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Application Number: 29/365,389
Classifications
Current U.S. Class: D6/502; D6/366