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Expired Canadian patentCanada

Core-shell catalyst, its preparation and use thereof for fischer-tropsch synthesis

CA 2564221 C · Owner: Engelhard Corporation · Inventors: Moini, Ahmed; Johnson, Geoffrey; Baijense, Cornelis Roeland

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Abstract From the Canadian patent

The present invention relates to a Catalyst comprising a preferably oxidic, core material, a shell of zinc oxide around said core material and a , catalytically active material in or on the shell based on one or more of the , metals cobalt iron, ruthenium and/or nickel, preferably a Fischer-Tropsch catalyst, to the preparation of such a catalyst and the use thereof in GTL processes.

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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 April 26, 2005 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 26, 2005
GrantedJuly 29, 2014
Term endedApril 26, 2025
Patent numberCA 2564221 C
Classification (IPC)B01J23/80 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 26, 2005Patent grantedJuly 29, 2014Term endedApril 26, 2025

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