Portable utility ladder

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Description

FIG. 1 is a front right perspective view of a portable utility ladder showing the new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a side elevation view thereof; and,

FIG. 4 is a front left perspective view of the ladder in a partially collapsed position.

Referenced Cited
U.S. Patent Documents
D179892 March 1957 Gastright
4182431 January 8, 1980 Wing
4613013 September 23, 1986 Watling
5086872 February 11, 1992 Lin
Patent History
Patent number: D392744
Type: Grant
Filed: Aug 20, 1996
Date of Patent: Mar 24, 1998
Inventor: Brian Staal (Combermere, Ontario)
Primary Examiner: Doris Clark
Law Firm: Swabey Ogilvy Renault
Application Number: 0/58,673
Classifications
Current U.S. Class: Ladder (D25/64)
International Classification: 2504;