USD256897SExpiredUtility

Smoke detector

78
Assignee: HOCHIKI COPriority: Mar 25, 1978Filed: Jun 28, 1978Granted: Sep 16, 1980
Est. expiryMar 25, 1998(expired)· nominal 20-yr term from priority
Inventors:Takeo ArimaYoshinori KaminakaKazumi Kikuchi
78
PatentIndex Score
17
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1
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1
Claims

Claims

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

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