USD324698SExpiredUtility

Perpetual calendar

40
Individually held — no corporate assignee on recordPriority: Mar 1, 1990Filed: Mar 1, 1990Granted: Mar 17, 1992
Est. expiryMar 1, 2010(expired)· nominal 20-yr term from priority
Inventors:Deborah S. Bruns
40
PatentIndex Score
9
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a perpetual calendar, as shown and described.

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