USD255035SExpiredUtility
Drum
Individually held — no corporate assignee on recordPriority: Sep 12, 1977Filed: Sep 12, 1977Granted: May 20, 1980
Est. expirySep 12, 1997(expired)· nominal 20-yr term from priority
Inventors:Roger W. North
55
PatentIndex Score
7
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a drum, as shown.
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