Uneven surface ladder

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Description

FIG. 1 is a perspective view of the uneven surface ladder embodying the design of the present invention.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

Claims

I claim the ornamental design for an uneven surface ladder, as shown and described.

Referenced Cited
U.S. Patent Documents
1329740 February 1920 Barron
2147052 February 1939 Noone
3173512 March 1965 Sturdy et al.
D238298 December 1975 Larson
4249638 February 10, 1981 Fernandez
4683980 August 4, 1987 Vayko
4807720 February 28, 1989 Kim
5044468 September 3, 1991 Worthington, Jr.
5335754 August 9, 1994 Gibson
Patent History
Patent number: D457650
Type: Grant
Filed: Aug 8, 2001
Date of Patent: May 21, 2002
Inventor: Gary W. MacDuff (Vanderhoof, British Columbia)
Primary Examiner: Doris Clark
Attorney, Agent or Law Firm: Donald R. Schoonover
Application Number: 29/146,307
Classifications
Current U.S. Class: Ladder (D25/64)
International Classification: 2504;