A dual technology occupancy sensor and method for using the same
CA 2387100 C · Owner: Hubbell Incorporated · Inventors: Baldwin, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual technology motion or occupancy sensor and a method for using the , same, to control a lighting circuit to activate and deactivate lights in a monitored area. The , sensor employs an infrared energy sensor a microwave energy sensor, and a , controller. The infrared energy sensor outputs an infrared energy detection signal indicative of detection or , non-detection of infrared energy and the microwave energy sensor outputs a microwave , energy detection signal indicative of detection or non-detection of microwave energy. The , controller outputs a control signal to control activation and deactivation of the lighting circuit , in response to a condition of the infrared energy …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 21, 2002 and granted September 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2024.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.