USD262630SExpiredUtility

Drill bit

77
Individually held — no corporate assignee on recordPriority: Jan 19, 1979Filed: Jan 19, 1979Granted: Jan 12, 1982
Est. expiryJan 19, 1999(expired)· nominal 20-yr term from priority
Inventors:Clifford K. Logan, Jr.
77
PatentIndex Score
13
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a drill bit, substantially as shown and described.

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