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Expired Canadian patentCanada

Process for producing a catalytic layer for a fuel cell electrode and such a catalytic layer

CA 1281069 C · Owner: Blanchart, Alain Paul Octave · Inventors: Blanchart, Alain Paul Octave; Van Der Poorten, Christian Jean Marie Edgard Camille

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Abstract From the Canadian patent

The invention relates to a process for producing a catalytic layer for a fuel cell electrode, which process is characterized in that first step at least two carbons or mixtures of carbons are separately mixed with binder, subsequently in a second step these separate carbon/binder mixtures are intimately mixed together and after that in a third step the mixture obtained is formed into a catalytic layer of the desired dimensions.

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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

  • Granted March 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 3, 1986
GrantedMarch 5, 1991
Term endedMarch 5, 2008
Patent numberCA 1281069 C
Classification (IPC)H01M4/90 +1 more

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