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Expired Canadian patentCanada

Process for preparing an igniter plug, and igniter plug thus obtained

CA 2561220 C · Owner: Vibro Meter France · Inventors: Jankowiak, Aurelien; Blanchart, Philippe; Collardey, Francois

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Abstract From the Canadian patent

Process for preparing a high power, low voltage ignitor plug comprising ceramic between its electrodes: - in a container with a liquid 50 to 75% of a compound designed to form a conductive phase is mixed with 25 to 50% of one or several materials enabling the formation of phases of yttrium garnet after thermal treatment; crushing drying and sifting operations of this mixture are carried out; - this mixture is then pressed or injected into a mold; - the mixture is then sintered to obtain ceramic with porosity between 0 and 30%; - and the said ceramic is used to make the material located between the electrodes of a high power low voltage ignitor plug. Ignitor plug thus prepared.

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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 September 28, 2006 and granted March 17, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 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.
FiledSeptember 28, 2006
GrantedMarch 17, 2015
Term endedSeptember 28, 2026
Patent numberCA 2561220 C
Classification (IPC)H01T21/02 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 28, 2006Patent grantedMarch 17, 2015Term endedSep 28, 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.