USD315423SExpiredUtility

Long range fresnel lens array for infrared motion detector system

63
Assignee: FRESNEL TECH INCPriority: Feb 27, 1989Filed: Feb 27, 1989Granted: Mar 12, 1991
Est. expiryFeb 27, 2009(expired)· nominal 20-yr term from priority
Inventors:Richard N. ClaytorRussell G. Torti
63
PatentIndex Score
10
Cited by
7
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1
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Claims

exact text as granted — not AI-modified
The ornamental design for a long range fresnel lens array for infrared motion detector system, as shown and described.

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