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Expired Canadian patentCanada

Vehicle ignition interlock systems with multiple alcohol sensors

CA 2721209 C · Owner: Monitech, Inc. · Inventors: Edwards, Jimmy H.; Mcmillin, Brian; Lewis, James R.

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A vehicle ignition interlock system comprises a breath analyzer located within a vehicle wherein the breath analyzer is configured to detect breath alcohol levels of an operator of the vehicle. An impact sensor that is configured to detect impact events experienced by one or more portions of the vehicle ignition interlock system and a controller operably connected to the breath analyzer to the impact sensor, and to an ignition system of the vehicle wherein the controller is configured to compare detected breath alcohol levels of the vehicle operator with a threshold value wherein the controller is configured to prevent vehicle ignition if a breath alcohol level detected by the breath …

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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 April 24, 2006 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2026.
  • 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.
FiledApril 24, 2006
GrantedAugust 6, 2013
Term endedApril 24, 2026
Patent numberCA 2721209 C
Classification (IPC)B60K28/06

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 24, 2006Patent grantedAug 6, 2013Term endedApril 24, 2026

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