RAYTEK, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0048,307 Device and process for infrared temperature measurementAbandonedJul 25, 01Apr 25, 02[G01K, G01J, G01B]
4642454 Infrared intrusion detector with field of view locatorExpiredAug 27, 84Feb 10, 87[G01V]
4634294 Hand-held digital temperature measuring instrumentExpiredMay 12, 81Jan 06, 87[G01J]
4195234 Infrared intrusion alarm system with temperature responsive threshold levelExpiredFeb 02, 78Mar 25, 80[H01J, H01H]
D253879 Alarm cabinetExpiredApr 17, 78Jan 08, 80[D100]

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