Stretcher structure used in multiple collapsible umbrella

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Description

FIG. 1 is a perspective view of a stretcher structure used in mulitiple collapsible umbrella showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
3746024 July 1973 Kida
5193565 March 16, 1993 Huang
5235998 August 17, 1993 Liu
5337770 August 16, 1994 Wang
5645094 July 8, 1997 Wu
5865200 February 2, 1999 Kuang et al.
Patent History
Patent number: D424799
Type: Grant
Filed: Apr 8, 1999
Date of Patent: May 16, 2000
Inventor: Cheng Min Lai (Taipei)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Catherine R. Oliver
Law Firm: Rosenberg, Klein & Lee
Application Number: 0/103,103
Classifications
Current U.S. Class: D 3/5
International Classification: 0304;