USD297244SExpiredUtility
Perpetual calendar
Individually held — no corporate assignee on recordPriority: Mar 27, 1984Filed: Sep 27, 1984Granted: Aug 16, 1988
Est. expiryMar 27, 2004(expired)· nominal 20-yr term from priority
Inventors:George Kennedy
57
PatentIndex Score
8
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a perpetual calendar, as shown.
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