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 and described.

Referenced Cited
U.S. Patent Documents
D540081 April 10, 2007 Su
D540579 April 17, 2007 Su
D540580 April 17, 2007 Su
D544735 June 19, 2007 Su
D553886 October 30, 2007 Su
D557028 December 11, 2007 Su
Patent History
Patent number: D577519
Type: Grant
Filed: Oct 18, 2007
Date of Patent: Sep 30, 2008
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/296,384
Classifications
Current U.S. Class: D6/502; D6/366