USD262869SExpiredUtility

Infrared intrusion detector

64
Assignee: AMERICAN DISTR TELEGRAPH COMPANYPriority: Apr 26, 1979Filed: Apr 26, 1979Granted: Feb 2, 1982
Est. expiryApr 26, 1999(expired)· nominal 20-yr term from priority
Inventors:John K. GuscottGianfranco Zaccai
64
PatentIndex Score
7
Cited by
3
References
1
Claims

Claims

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

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