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Expired Canadian patentCanada

Process for enzymatically saccharifying starch- containing raw materials

CA 1211399 A · Owner: Voest - Alpine Aktiengesellschaft · Inventors: Hanke, Reinhart; Treso, Bertalan; Faltejsek, Karl

CIPO record

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Abstract From the Canadian patent

In an enzymatic saccharification process a sugar solu-, tion of constant sugar content is obtained by adding to the starch-containing raw materials, prior to the enzymatic saccharification step, part of the sugar solution obtained after the saccharification step and being separated from solid material and having been brought to a higher concentration, so that a higher sugar content in particular within, the range from 15 to 22% by weight and preferably approximately 20% by weight, can constantly be maintained indepen-, dent of the concentration and quality of the raw materials.

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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 September 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 2003.
  • 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 12, 1984
GrantedSeptember 16, 1986
Term endedSeptember 16, 2003
Patent numberCA 1211399 A
Classification (IPC)C12P19/14 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJan 12, 1984Patent grantedSep 16, 1986Term endedSep 16, 2003

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