USD253400SExpiredUtility

Smoke detector

58
Assignee: RIVAL MFG COMPANYPriority: Dec 29, 1977Filed: Dec 29, 1977Granted: Nov 13, 1979
Est. expiryDec 29, 1997(expired)· nominal 20-yr term from priority
Inventors:William W. Vander Wilt
58
PatentIndex Score
10
Cited by
0
References
1
Claims

Claims

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

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