USD248930SExpiredUtility

Ultrasonic intrusion detector

48
Assignee: ARROWHEAD ENTPR INCPriority: Feb 16, 1977Filed: Feb 16, 1977Granted: Aug 15, 1978
Est. expiryFeb 16, 1997(expired)· nominal 20-yr term from priority
Inventors:William G. Kahl, Jr.
48
PatentIndex Score
5
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an ultrasonic intrusion detector, substantially as shown and described.

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