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Expired Canadian patentCanada

Mutant lactobacillus bulgaricus strains free from beta-galactoside activity

CA 2329494 C · Owner: Benbadis, Laurent · Inventors: Benbadis, Laurent; Brignon, Pierre; Gendre, Francois

CIPO record

Overview

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Abstract From the Canadian patent

The invention concerns mutant L. bulgaricus strains bearing a nonsense mutation in at least one of the sequences coding for the lactose operon and free from .beta.-galactosidase activity and lactic starters comprising said strains. Said strains and starters can be used to obtain fermented milk products from glucose-added milk.

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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 May 17, 1999 and granted August 23, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 17, 1999
GrantedAugust 23, 2011
Term endedMay 17, 2019
Patent numberCA 2329494 C
Classification (IPC)C12N15/56 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 17, 1999Patent grantedAug 23, 2011Term endedMay 17, 2019

Sources & verification

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