USD279173SExpiredUtility

Countdown timer

52
Individually held — no corporate assignee on recordPriority: Jan 20, 1983Filed: Jan 20, 1983Granted: Jun 11, 1985
Est. expiryJan 20, 2003(expired)· nominal 20-yr term from priority
Inventors:William P. Ketcham
52
PatentIndex Score
7
Cited by
8
References
1
Claims

Claims

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

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