USD449004SExpiredUtility

Self opening calculator clock

50
Priority: Mar 14, 2001Filed: Mar 14, 2001Granted: Oct 9, 2001
Est. expiryMar 14, 2021(expired)· nominal 20-yr term from priority
Inventors:Robert Li
50
PatentIndex Score
7
Cited by
23
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a self opening calculator clock, as shown and described.

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