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Expired Canadian patentCanada

Process for production of isomaltulose

CA 1306711 C · Owner: Takamatsu, Hisao · Inventors: Hattori, Reiko; Hitoshio, Akio; Takamatsu, Hisao

CIPO record

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

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Abstract From the Canadian patent

A process for the production of isomaltulose whereby glucose and fructose are reacted to form isomaltulose in the presence of an enzyme which hydrolyzes a polysaccharide or oligosaccharide at the .alpha.-1 4 and/or, .alpha.-1,6-glucoside linkage thereof by an exo-type cleavage.

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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 August 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 22, 1988
GrantedAugust 25, 1992
Term endedAugust 25, 2009
Patent numberCA 1306711 C
Classification (IPC)C12P19/12 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJuly 22, 1988Patent grantedAug 25, 1992Term endedAug 25, 2009

Sources & verification

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