Foldup wheel chair ramp with guide rails

Details Foldup wheel chair ramp with guide rails Foldup wheel chair ramp with guide rails

2003-08-04

2004-08-10

Ramirez, Cynthia E. (Department: 2911)

Material or article handling equipment

Conveying, lifting, or transferring article

Ramp

Design Patent

active

D0494336

CLAIM:
The ornamental design for a foldup wheel chair ramp with guide rails, as shown and described.

REFERENCES:
patent: D246449 (1977-11-01), Poe
patent: D299776 (1989-02-01), Canterberry
patent: D311798 (1990-10-01), Boots et al.
patent: D315046 (1991-02-01), Abrams
patent: D346256 (1994-04-01), Thomas et al.
patent: D353071 (1994-12-01), Roberts
patent: D373885 (1996-09-01), Holland, Jr.
patent: D382676 (1997-08-01), Holbrook
patent: 5671496 (1997-09-01), Smith
patent: 6269508 (2001-08-01), Younce
patent: 6293748 (2001-09-01), Savaria
patent: 6418675 (2002-07-01), Peggs et al.
patent: 6634848 (2003-10-01), Henderson

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