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Expired Canadian patentCanada

Novel nucleic acid molecules from maize and their use for the production of modified starch

CA 2272844 C · Owner: Planttec Biotechnologie Gmbh · Inventors: Emmermann, Michael; Kossmann, Jens

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

Nucleic acid molecules are described encoding a starch granule-bound protein from maize as well as methods and recombinant DNA molecules for the production of transgenic plant cells and plants synthesizing a modified starch. Moreover, the plant cells and plants resulting from those methods as well as the starch obtainable therefrom 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 December 18, 1997 and granted March 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2019.
  • 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 18, 1997
GrantedMarch 22, 2011
Term endedDecember 18, 2017
Patent numberCA 2272844 C
Classification (IPC)C12N15/29 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 18, 1997Patent grantedMarch 22, 2011Term endedDec 18, 2017

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