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
D534384 January 2, 2007 Su
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
D544735 June 19, 2007 Su
Patent History
Patent number: D553886
Type: Grant
Filed: Mar 25, 2007
Date of Patent: Oct 30, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/278,303
Classifications
Current U.S. Class: D6/502