Step for a portable riser assembly
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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
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
Current U.S. Class:
Stair Tread, Step Or Ladder Rung (D25/69)