Utility knife

Details Utility knife Utility knife

2003-08-18

2004-10-19

Hyder, Philip S. (Department: 2912)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0497301

CLAIM:
The ornamental design for a utility knife, as shown.

REFERENCES:
patent: D264803 (1982-06-01), Machida
patent: D324475 (1992-03-01), Staubitz et al.
patent: D354900 (1995-01-01), Hirai
patent: D386959 (1997-12-01), Okada
patent: D398829 (1998-09-01), Okada
patent: D399114 (1998-10-01), Okada
patent: D431170 (2000-09-01), Okada
patent: D436825 (2001-01-01), Chen
patent: D443494 (2001-06-01), Okada
patent: D443807 (2001-06-01), Okada
patent: D453673 (2002-02-01), Chen
patent: D459189 (2002-06-01), Chong

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