U.S. patent number D446,741 [Application Number D/128,611] was granted by the patent office on 2001-08-21 for detector. This patent grant is currently assigned to Pittway Corporation. Invention is credited to Michael D. Berg, Dale H. Johnson, Thomas Young.
United States Patent | D446,741 |
Johnson , et al. | August 21, 2001 |
Inventors: | Johnson; Dale H. (Elgin, IL), Young; Thomas (South Elgin, IL), Berg; Michael D. (Carol Stream, IL) |
---|---|
Assignee: | Pittway Corporation (Chicago,
IL) |
Appl. No.: | D/128,611 |
Filed: | August 28, 2000 |
Current U.S. Class: | D10/106.5 |
Current International Class: | 1005 |
Field of Search: | ;D10/104,106,116,121 ;340/571,572,573,577,578,628,629,630 |
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System Sensor, Model 18002-Wire Systems Detectors, 2 pg. brochure, May 1988. . System Sensor, 400 Serial Next Generation Detectors, 2 pg. brochure, 1991. . System Sensor, 4451E/5451E2 Plug-In Thermal Detectors; 2 pg. brochure, Jun., 1992. . System Sensor, 400 Series Ionization Smoke Detectors; 2 pg. brochure, Oct. 1991. . System Sensor, 2851 Series 2/4/6-Wire systems Detectors, 2 pg. brochure, Oct. 1988. . System Sensor, 5551B Intelligent Fixed Temperature Thermal Sensor With Integral Communications, 2 pg. brochure, 1991. . System Sensor, 400 Series Plug-In Smoke Detectors, 4 pg. brochure, Jul. 1992. . Nittan Model 2KH advertisement, believed to have been published in Jun. 1992. . Tann 5400 Series Smoke Detector, two information sheets, believed to have been published on or about Jun., 1992.. |
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