USD253723SExpiredUtility
Ear plug
Individually held — no corporate assignee on recordPriority: Feb 6, 1978Filed: Feb 6, 1978Granted: Dec 18, 1979
Est. expiryFeb 6, 1998(expired)· nominal 20-yr term from priority
Inventors:Howard S. Leight
96
PatentIndex Score
39
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe design for an ear plug, substantially as shown.
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