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Expired Canadian patentCanada

Soya sauce

CA 2023474 C · Owner: Ho Dac, Thang · Inventors: Ho Dac, Thang; Wood, Robert Dustan; Bajracharya, Rupak

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

A process for the production of a soya sauce in which, a koji is prepared by fermentation with a koji culture of a mixture of cooked soya and roasted wheat the koji, is hydrolyzed in aqueous suspension with the enzymes produced during fermentation of the koji, a moromi is prepared by addition of sodium chloride to the hydrolyzed koji suspension, the moromi is left to ferment and is then pressed and the liquor obtained is pasteurized and clarified.

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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 August 16, 1990 and granted January 28, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 16, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 16, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 16, 1990
GrantedJanuary 28, 1997
Term endedAugust 16, 2010
Patent numberCA 2023474 C
Classification (IPC)A23L27/50 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 16, 1990Patent grantedJan 28, 1997Term endedAug 16, 2010

Sources & verification

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