USD258806SExpiredUtility

Toothshaped sand timer

52
Individually held — no corporate assignee on recordPriority: Feb 16, 1978Filed: Feb 16, 1978Granted: Apr 7, 1981
Est. expiryFeb 16, 1998(expired)· nominal 20-yr term from priority
Inventors:Ruth M. MericleMarjorie M. A. Mericle
52
PatentIndex Score
9
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a toothshaped sand timer, as shown.

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