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Expired Canadian patentCanada

Catalysts for alkoxylation reactions

CA 1196325 A · Owner: Conoco Inc. · Inventors: Yang, Kang

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Abstract From the Canadian patent

Abstract of the Disclosure Catalysts producing a sharply peaked alkoxylation distribution during the alkoxylation of organic materials comprise mixtures of BF3 and metal alkyls or metal alkoxides SiF4 and metal alkyls or metal alkoxides or mixtures of, these catalysts.

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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 November 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2002.
  • 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 20, 1983
GrantedNovember 5, 1985
Term endedNovember 5, 2002
Patent numberCA 1196325 A
Classification (IPC)B01J31/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 20, 1983Patent grantedNov 5, 1985Term endedNov 5, 2002

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