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
D417792 December 21, 1999 Hansen et al.
D456159 April 30, 2002 Ball et al.
D456650 May 7, 2002 Ball et al.
D457023 May 14, 2002 Ball et al.
D471042 March 4, 2003 Schmitz et al.
D471370 March 11, 2003 Schmitz et al.
D490994 June 8, 2004 Schmitz et al.
D494792 August 24, 2004 Schmitz et al.
D506893 July 5, 2005 Hsien
D544720 June 19, 2007 Berbegal Perez
Patent History
Patent number: D575085
Type: Grant
Filed: Mar 30, 2008
Date of Patent: Aug 19, 2008
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/305,901
Classifications
Current U.S. Class: D6/502; D6/366