Self-operating wheelchair lift

Details Self-operating wheelchair lift Self-operating wheelchair lift

2003-03-31

2004-02-03

Ramirez, Cynthia E. (Department: 2911)

Material or article handling equipment

Conveying, lifting, or transferring article

Design Patent

active

D0486288

CLAIM:
We claim the ornamental design for a self-operating wheelchair lift, as shown and described.

REFERENCES:
patent: 4121695 (1978-10-01), Carpenter
patent: 4415202 (1983-11-01), Pew
patent: 5165123 (1992-11-01), Colpron
patent: 5333333 (1994-08-01), Mah
patent: 5520403 (1996-05-01), Bergstrom et al.
patent: D373880 (1996-09-01), Wrobel
patent: 5553548 (1996-09-01), Eaton
patent: 5729842 (1998-03-01), McCarthy
patent: 5819338 (1998-10-01), Hession
patent: D440728 (2001-04-01), Schlangen
patent: 6425634 (2002-07-01), Romero
patent: 6637610 (2003-10-01), Cheeseboro

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