Backrest support frame for a chair

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Description

FIG. 1 is a perspective view of backrest support frame for a chair my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front elevtional view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2577050 December 1951 Van Buren
2599301 June 1952 Van Buren
2784769 March 1957 Fisher
2847062 August 1958 Henrikson et al.
3059971 October 1962 Becker
3720442 March 1973 Bergmann et al.
5711576 January 27, 1998 Olson et al.
Patent History
Patent number: D429926
Type: Grant
Filed: Apr 27, 1999
Date of Patent: Aug 29, 2000
Inventor: Zi-Wen Cao (Taichung)
Primary Examiner: Doris V. Coles
Assistant Examiner: Mimosa De
Application Number: 0/104,034
Classifications
Current U.S. Class: D/6500
International Classification: 0606;