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Expired Canadian patentCanada

Oat fractionation process and product thereof

CA 2115228 C · Owner: The Quaker Oats Company · Inventors: Paisley, Steven D.; Lenz, Marvin K.

CIPO record

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Abstract From the Canadian patent

The present invention relates to a process for fractionating oats to obtain a stable, soluble oat protein containing aqueous solution the process, comprising: preparing an aqueous slurry comprising water and an oat substrate; fractionating the oat substrate by maintaining the slurry at a sufficient temperature and treating the slurry with sufficient agitation sufficient base or acid to adjust the pH of the aqueous slurry to outside the isoelectric range, and sufficient protease to hydrolyze sufficient oat protein thereby obtaining a translucent slurry which comprises an insoluble solid fraction, an insoluble liquid fraction a stable, soluble oat protein fraction a, soluble oat fat fraction, …

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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

  • Filed February 8, 1994 and granted June 8, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 1994
GrantedJune 8, 1999
Term endedFebruary 8, 2014
Patent numberCA 2115228 C
Classification (IPC)C12P21/06 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 8, 1994Patent grantedJune 8, 1999Term endedFeb 8, 2014

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