Stair step for a platform

Description

FIG. 1 is a front elevational view of a stair step for a platform showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view, the left side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
330963 November 1885 Dennis
3130814 April 1964 Aquila
3826336 July 1974 Cramer
4034829 July 12, 1977 Hoffman
4753320 June 28, 1988 Walter
Patent History
Patent number: D326159
Type: Grant
Filed: Dec 6, 1989
Date of Patent: May 12, 1992
Assignee: Ronningen Research & Development Company (Vicksburg, MI)
Inventor: Jon H. Eickhoff (Kalamazoo, MI)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Flynn, Thiel, Boutell & Tanis
Application Number: 7/446,916
Classifications