Machines not elsewhere specified – Agricultural or construction machinery – Element or attachment
Design Patent
2000-06-14
2002-06-11
Siegel, Mitchell (Department: 2912)
Machines not elsewhere specified
Agricultural or construction machinery
Element or attachment
Design Patent
active
D0458614
CLAIM:
The design for a ground-engaging tool for an excavation bucket, as shown and described.
REFERENCES:
patent: 3622206 (1971-11-01), Krekeler
patent: 3805423 (1974-04-01), Engel et al.
patent: 3984910 (1976-10-01), Helton et al.
patent: 5081774 (1992-01-01), Kuwano
patent: 5375350 (1994-12-01), Maybon
patent: 5392870 (1995-02-01), Clapham et al.
Manufacturing Processes by Roberts and Lapidge, p. 1 and 2 (1977).
Esterhuyse Schalk Willem Petrus
Kriel Louw
Caterpillar SARL
Kilpatrick & Stockton LLP
Siegel Mitchell
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