Transportation – Perambulator – invalid chair – or stretcher – Walker
Design Patent
2000-01-04
2001-04-24
Spear, Robert M. (Department: 2913)
Transportation
Perambulator, invalid chair, or stretcher
Walker
Design Patent
active
D0440911
CLAIM:
The ornamental Design for a tire tread, as shown and described.
REFERENCES:
patent: D. 49535 (1916-08-01), Boyd
patent: D. 61557 (1922-10-01), Broadwell
patent: D. 419929 (2000-02-01), Maxwell
Yokohama A008G Tire, 1999 Tread Design Guide, p. 78. 2/1, Jan. 1999.
Lewandowski T P
Spear Robert M.
The Goodyear Tire & Rubber Company
Wheeler David E
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