USD298101SExpiredUtility
Screw driver
Individually held — no corporate assignee on recordPriority: Aug 7, 1984Filed: Aug 7, 1984Granted: Oct 18, 1988
Est. expiryAug 7, 2004(expired)· nominal 20-yr term from priority
Inventors:Chung-Ming Chen
68
PatentIndex Score
11
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a screw driver, as shown and described.
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