USD277652SExpiredUtility

Passive infrared intrusion detector unit

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Assignee: CERBERUS AGPriority: Aug 16, 1982Filed: Aug 16, 1982Granted: Feb 19, 1985
Est. expiryAug 16, 2002(expired)· nominal 20-yr term from priority
Inventors:William G. Kahl, Jr.Ronald G. Avery
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PatentIndex Score
13
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1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a passive infrared intrusion detector unit, as shown.

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