USD372253SExpiredUtility

Support arm and rotary cone for modular drill bit

66
Assignee: DRESSER INDPriority: Jan 17, 1995Filed: Jan 17, 1995Granted: Jul 30, 1996
Est. expiryJan 17, 2015(expired)· nominal 20-yr term from priority
Inventors:Alan D. HuffstutlerHarry M. Campos, Jr.Michael S. BeatonJay S. Bird
66
PatentIndex Score
14
Cited by
87
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a support arm and rotary cone for modular drill bit, as shown.

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