USD312033SExpiredUtility
Screwdriver
Individually held — no corporate assignee on recordPriority: Aug 11, 1988Filed: Aug 11, 1988Granted: Nov 13, 1990
Est. expiryAug 11, 2008(expired)· nominal 20-yr term from priority
Inventors:David Carlson
47
PatentIndex Score
8
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a screwdriver, as shown and described.
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