USD314358SExpiredUtility
Hard hat hanger
Individually held — no corporate assignee on recordPriority: Sep 21, 1988Filed: Sep 21, 1988Granted: Feb 5, 1991
Est. expirySep 21, 2008(expired)· nominal 20-yr term from priority
Inventors:Richard O. Holzworth
20
PatentIndex Score
3
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a hard hat hanger, as shown and described.
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