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Expired Canadian patentCanada

Homologation process

CA 1285960 C · Owner: Union Carbide Corporation · Inventors: Wegman, Richard William; Moloy, Kenneth Gene

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure A process for the homologation of an, alkanol by reaction with synthesis gas in contact with a system containing rhodium atom, ruthenium atom, iodine atom and a bis(diorganophosphino) alkane to selectivity produce the next higher homologue.

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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 July 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 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.
FiledDecember 18, 1987
GrantedJuly 9, 1991
Term endedJuly 9, 2008
Patent numberCA 1285960 C
Classification (IPC)C07C29/32 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 18, 1987Patent grantedJuly 9, 1991Term endedJuly 9, 2008

Sources & verification

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