Chair backrest

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Description

FIG. 1 is a perspective view of a 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.

Referenced Cited
U.S. Patent Documents
D474346 May 13, 2003 Saylor et al.
D486656 February 17, 2004 Su
D487359 March 9, 2004 Giugiaro
D489191 May 4, 2004 Ma
D493627 August 3, 2004 Ma
D507124 July 12, 2005 Yang
D510488 October 11, 2005 Su
D511418 November 15, 2005 Breen
D514832 February 14, 2006 Tsai
D527920 September 12, 2006 Giugiaro
D528811 September 26, 2006 Giugiaro
D534365 January 2, 2007 Breen
D534384 January 2, 2007 Su
Patent History
Patent number: D543398
Type: Grant
Filed: Jun 19, 2006
Date of Patent: May 29, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/247,436
Classifications
Current U.S. Class: D6/502; D6/366