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Expired Canadian patentCanada

Gas regulating fitting

CA 2559437 C · Owner: Happe, Barbara · Inventors: Blank, Juergen; Happe, Barbara

CIPO record

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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 gas regulating fitting which, once a gas stove has been successfully started up, can switch the pilot burner into the off position when the main burner is in , the off position. The gas regulating fitting comprises a sensor for detecting the , operating state of the main burner. The sensor is connected to a thermoelectric , safety pilot valve such that when the operating state of the main burner is switched , from the on position into the off position by a signal emitted from the sensor, the , thermoelectric safety pilot valve assumes the closed position. The thermoelectric , safety pilot valve is disposed between a gas pilot outlet and a main gas outlet. The , thermoelectric …

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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 March 10, 2005 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 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.
FiledMarch 10, 2005
GrantedJune 25, 2013
Term endedMarch 10, 2025
Patent numberCA 2559437 C
Classification (IPC)F23N1/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 10, 2005Patent grantedJune 25, 2013Term endedMarch 10, 2025

Sources & verification

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