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Expired Canadian patentCanada

Fuel cell system controller

CA 2377412 C · Owner: Herron, Thomas G. · Inventors: Herron, Thomas G.; Holmes, Craig F.; Edlund, David J.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A fuel cell system (10) that includes a control system (30) for regulating the power produced by the fuel cell system (10). The fuel cell system (10) includes a fuel cell stack (14) adapted to produce electrical power from a feed (102). In some embodiments, the fuel cell system (10) includes a fuel processing assembly (16) adapted to produce the feed for the fuel cell stack (14) from one or more feedstocks. The control system (30) regulates the power produced by the fuel cell system (10) to prevent damage to and/or failure of, the system (10).

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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 July 26, 2000 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 26, 2000
GrantedAugust 5, 2003
Term endedJuly 26, 2020
Patent numberCA 2377412 C
Classification (IPC)H01M2/00 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJuly 26, 2000Patent grantedAug 5, 2003Term endedJuly 26, 2020

Sources & verification

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