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Expired Canadian patentCanada

Power management systems and methods

CA 2461784 C · Owner: Portaro, Lawrence Michael · Inventors: Bakanowski, Stephen Michael; Kinny, David Laurence; Portaro, Lawrence Michael

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 cooking platform includes at least one surface heating element having a first power consumption level and an oven located under the surface heating element. The oven includes a first heating element having a second power consumption level and a second heating element having a third power consumption level. The second heating element has at least two heating sub-elements. One of the two heating sub-elements is configured to be deenergized when a sum of the first second, and third power consumption levels exceeds a power consumption limit of the cooking platform.

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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 25, 2004 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.
FiledMarch 25, 2004
GrantedJanuary 8, 2013
Term endedMarch 25, 2024
Patent numberCA 2461784 C
Classification (IPC)F24C7/08 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 25, 2004Patent grantedJan 8, 2013Term endedMarch 25, 2024

Sources & verification

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