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Expired Canadian patentCanada

Electrochemical apparatus with reactant micro-channels

CA 2394896 C · Owner: Technology Management, Inc. · Inventors: Petrik, Michael A.; Milliken, Christopher E.; Ruhl, Robert C.

CIPO record

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Abstract From the Canadian patent

The present invention is directed generally to an electrochemical apparatus for oxidation or , consumption of a fuel and the generation of electricity, such as a solid , electrolyte fuel cell. The , electrochemical apparatus (1) comprises at least one cell (2) wherein the , cell (2) has a solid , electrolyte (10) disposed between an oxygen electrode (12) and a fuel electrode (8), and at least one , separator (6) contacting the surface of one of the electrodes (13) opposite of the electrolyte (10). At , least one electrode (13) of the cell (2) defines a micro-channel pattern (26) wherein the , micro-channel cross-section is preferably varied such that reactant gas , flowing through the …

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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 November 16, 2000 and granted May 7, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 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.
FiledNovember 16, 2000
GrantedMay 7, 2013
Term endedNovember 16, 2020
Patent numberCA 2394896 C
Classification (IPC)H01M4/86 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedNov 16, 2000Patent grantedMay 7, 2013Term endedNov 16, 2020

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