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Expired Canadian patentCanada

Catalyst composition and method for preparing the same

CA 1064893 A · Owner: Shoei Chemical Industries Co. · Inventors: Asada, Elichi; Takiguchi, Toshio

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Abstract From the Canadian patent

A catalyst comprising carbon fiber coated with at least one catalytic metal, such as the metals of group VIII of the Periodic Table or Zn, Cu, Ag, Au, Cr, Mg or Mn. The catalyst is prepared by submerging the carbon fiber in the form of a, filament, yarn or woven or non-woven textile in a non-aqueous, solution containing an organic compound of the metal or metals to be deposited on the fiber, drying and then pyrolyzing the compounds contained thereon. Optionally, the fiber may then be submerged in an aqueous solution containing an inorganic compound of the metal or metals, dried and pyrolyzed. The resultant catalyst composition is useful for a variety of chemical reactions particularly those …

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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 October 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 23, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedOctober 23, 1979
Term endedOctober 23, 1996
Patent numberCA 1064893 A
Classification (IPC)B01J21/18 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedOct 23, 1979Term endedOct 23, 1996

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