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Expired Canadian patentCanada

Nucleic acid molecules from artichoke (cynara scolymus) encoding enzymes having fructosyl polymerase activity

CA 2283375 C · Owner: Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. · Inventors: Hellwege, Elke; Gritscher, Dominique; Heyer, Arnd G.

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Abstract From the Canadian patent

Described are nucleic acid molecules encoding enzymes having fructosyl polymerase activity. These enzymes are sucrose dependent sucrose fructosyltransferases (SST) enzymes. Furthermore vectors and host cells are , described containing the nucleic acid molecules in particular transformed , plant cells and plants that can be regenerated from them and that express the described SSTs. Furthermore, methods for the production of short-chain fructosyl polymers using the described hosts and/or the SSTs produced by them are described.

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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 March 2, 1998 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 2, 1998
GrantedMay 10, 2011
Term endedMarch 2, 2018
Patent numberCA 2283375 C
Classification (IPC)C12N15/82 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMarch 2, 1998Patent grantedMay 10, 2011Term endedMarch 2, 2018

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