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Canadian application, no grantCanada

Modulating urea degradation in wine yeast

CA 2464977 A1 · Owner: Coulon, Joana · Inventors: Van Vuuren, Hendrik Jurgens Jansen; Inglis, Debra; Lonvaud, Aline

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention provides yeast strains transformed to reduce nitrogen catabolite repression of a gene encoding a urea degrading enzymatic activity expressed by the yeast strain under fermenting conditions. Strains ofSaccharomyces cerevisiae are for example provided having enhanced DUR1,2 urea carboxylaseallophanate hydrolase activity under wine fermenting conditions.

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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 November 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 6, 2002
GrantedNo grant recorded
Term endedNovember 6, 2022
Patent numberCA 2464977 A1
Classification (IPC)C12N15/81 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 6, 2002Term endedNov 6, 2022

Sources & verification

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