USD345495SExpiredUtility
Drill bit for retrieving broken bolts
Individually held — no corporate assignee on recordPriority: Dec 5, 1991Filed: Dec 5, 1991Granted: Mar 29, 1994
Est. expiryDec 5, 2011(expired)· nominal 20-yr term from priority
Inventors:Daniel E. Priddy
61
PatentIndex Score
15
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a drill bit for retrieving broken bolts, as shown and described.
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