Folding stair unit

- Stageright Corporation
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a left side elevational view of a folding stair unit showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevational view with the step element partially closed; and,

FIG. 8 is a right side elevational view with the step element fully closed to storage position.

Referenced Cited
U.S. Patent Documents
D179311 November 1956 Marcy
D229921 January 1974 De Luca
3207260 September 1965 Castagna
3747708 July 1973 Wenger et al.
4006564 February 8, 1977 Wiese
4276955 July 7, 1981 Hickman
4412403 November 1, 1983 Le Franc et al.
Patent History
Patent number: D304499
Type: Grant
Filed: May 12, 1988
Date of Patent: Nov 7, 1989
Assignee: Stageright Corporation (Clare, MI)
Inventors: Orley D. Rogers (Farwell, MI), Kenneth E. Staten (Clare, MI)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Doris Clark
Law Firm: Barnes, Kisselle, Raisch, Choate, Whittemore & Hulbert
Application Number: 7/194,572
Classifications
Current U.S. Class: Stair, Ladder, Scaffold, Or Similar Support (D25/62)