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Expired Canadian patentCanada

Oil preheater for a combustion system

CA 2567809 C · Owner: Bechard, Ryan · Inventors: Bechard, Ryan

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 device and method of preheating oil in a combustion system that uses a heated liquid to convey heat energy to oil. The device is made of a thermally conductive material which has a passageway for oil and a passageway for a heated liquid. Heat energy from the heated liquid con~ductively transfers to the oil within the device. This method of preheating oil for combustion eliminates carbon creation and minimizes oil preheat temperature fluctuations thereby sig~nificantly lowering the cost and maintenance to operate a multi oil combustion system.

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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 25, 2004 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 2004
GrantedJanuary 31, 2012
Term endedMay 25, 2024
Patent numberCA 2567809 C
Classification (IPC)F23D11/44

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 25, 2004Patent grantedJan 31, 2012Term endedMay 25, 2024

Sources & verification

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