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Expired Canadian patentCanada

An isolated plant gene encoding a .beta.-amyrin synthase

CA 2392435 C · Owner: Plant Bioscience Limited · Inventors: Bryan, Gregory Thomas; Osbourn, Anne Elisabeth; Haralampidis, Kosmas

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Abstract From the Canadian patent

Disclosed are isolated .beta.-amyrin synthase-encoding cDNA and gDNA nucleic acids. The genes are involved in saponin synthesis. One preferred embodiment is the nucleotide sequence which encodes the polypeptide of Annex II. Also provided are variant sequences (e.g. alleles derivatives) and complementary , sequences plus vectors, host cells, plants, polypeptides and associated , processes of production and methods of use e.g. for influencing or affecting triterpene synsthesis, and hence the resistance to a fungal pathogen taste, palatability or nutritional value of the plant. Also provided is the .beta.amyrin synthase promoter sequence and variants and uses thereof.

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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 December 20, 2000 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 2000
GrantedMay 10, 2011
Term endedDecember 20, 2020
Patent numberCA 2392435 C
Classification (IPC)C12N15/29 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedDec 20, 2000Patent grantedMay 10, 2011Term endedDec 20, 2020

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