Stair step for a platform
Latest Ronningen Research & Development Company Patents:
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
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
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
Current U.S. Class:
Stair Tread, Step Or Ladder Rung (D25/69)