Collapsible walker

Details Collapsible walker Collapsible walker

2003-12-03

2004-11-02

Jackson, Marcus A. (Department: 2911)

Transportation

Perambulator, invalid chair, or stretcher

Walker

Design Patent

active

D0497845

CLAIM:
The ornamental design for a collapsible walker, as shown and described.

REFERENCES:
patent: 127948 (1872-06-01), Bassett
patent: 2316100 (1943-04-01), Nelson
patent: 2594051 (1952-04-01), McFarland
patent: 3716067 (1973-02-01), Skoog
patent: 3999778 (1976-12-01), Markiel
patent: D389545 (1998-01-01), Gertler
patent: D404345 (1999-01-01), Donets
patent: 6003532 (1999-12-01), Pi
patent: D420624 (2000-02-01), Gonzalez
patent: D474133 (2003-05-01), Cerelli

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