USD258811SExpiredUtility
Combined electronic clock and perpetual calendar
Individually held — no corporate assignee on recordPriority: Nov 28, 1978Filed: Nov 28, 1978Granted: Apr 7, 1981
Est. expiryNov 28, 1998(expired)· nominal 20-yr term from priority
Inventors:Chi T. You
62
PatentIndex Score
10
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a combined electronic clock and perpetual calendar, as shown and described.
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