USD246700SExpiredUtility

Smoke detector

40
Assignee: ATO INCPriority: Jun 14, 1976Filed: Jun 14, 1976Granted: Dec 20, 1977
Est. expiryJun 14, 1996(expired)· nominal 20-yr term from priority
Inventors:Channing W. Gilson
40
PatentIndex Score
2
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a smoke detector, as shown.

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