Step for a portable riser assembly

- Wenger Corporation
Description

FIG. 1 is a top, front, and left end perspective view of a step for a portable riser assembly showing our new design;

FIG. 2 is a bottom, rear, and right end perspective view;

FIG. 3 is a right end elevational view;

FIG. 4 is a left end elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a bottom plan view;

FIG. 7 is a front elevational view; and,

FIG. 8 is a top plan view.

Referenced Cited
U.S. Patent Documents
1964660 June 1934 Bozby
1985143 December 1934 Buffaloe
2697931 December 1954 Schill
3765509 October 1973 Taylor
3851431 December 1974 Klein
Patent History
Patent number: D341431
Type: Grant
Filed: Jan 30, 1992
Date of Patent: Nov 16, 1993
Assignee: Wenger Corporation (Owatonna, MN)
Inventors: John H. Kniefel (Owatonna, MN), Eugene N. Reshanov (Golden Valley, MN), Johannes N. Gaston (Minnetonka, MN)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Patterson & Keough
Application Number: 7/828,483
Classifications