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Expired Canadian patentCanada

Process for the oxidation aldoses, catalyst used in said process and products thus obtained

CA 1292243 C · Owner: Fuertes, Patrick · Inventors: Fleche, Guy; Fuertes, Patrick

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

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Abstract From the Canadian patent

Process for the oxidation of aldoses and particularly of glucose into the corresponding aldonic acids, wherein oxidation is carried out in an alkaline medium by means of an oxygen-containing gas in the, presence of a catalyst obtained by adding an efficient quantity of at least one of the metals constituting the Groups IV, V and VI, or promoter, onto a catalyst consisting of palladium on an inert support.

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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 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 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.
FiledJanuary 28, 1987
GrantedNovember 19, 1991
Term endedNovember 19, 2008
Patent numberCA 1292243 C
Classification (IPC)C07C59/10 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJan 28, 1987Patent grantedNov 19, 1991Term endedNov 19, 2008

Sources & verification

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