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Expired Canadian patentCanada

Method for testing the interconnection of remote hazardous condition detectors

CA 2583099 C · Owner: Kaiser, Timothy D. · Inventors: Kaiser, Timothy D.

CIPO record

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Abstract From the Canadian patent

A method of testing the interconnect between remotely distributed hazardous condition detectors is provided. The method utilizes the detector's self-test button to initiate a detector self-test. Once the self-test is complete the , detector's alarm is silenced and an interconnect test signal is sent to the interconnected remote hazardous condition detectors. The transmission of this signal continues so long as the test button remains depressed. The remote detectors, on receipt of this signal, sound their alarm. The user with the , local detector's alarm now silenced is better able to hear the remotely , interconnected detector's alarm.

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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 October 12, 2005 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 12, 2005
GrantedJanuary 8, 2013
Term endedOctober 12, 2025
Patent numberCA 2583099 C
Classification (IPC)G08B29/00

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedOct 12, 2005Patent grantedJan 8, 2013Term endedOct 12, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.