Spring

Details Spring Spring

2011-06-28

2011-06-28

Underwood, Cynthia (Department: 2915)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0640529

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

REFERENCES:
patent: 2520818 (1950-08-01), Terry
patent: 2779647 (1957-01-01), Hamm
patent: 3468527 (1969-09-01), Mather
patent: D251642 (1979-04-01), Ramsey
patent: D277952 (1985-03-01), Nakano et al.
patent: D279370 (1985-06-01), Ballew
patent: D289121 (1987-04-01), Sasaki
patent: 4951361 (1990-08-01), Stephens, Jr.
patent: D409024 (1999-05-01), Wagner et al.
patent: 5909791 (1999-06-01), DiStefano
patent: 6375174 (2002-04-01), Hasegawa et al.
patent: D525838 (2006-08-01), Weiser et al.

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