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Expired Canadian patentCanada

Flax (linum usitatissimum l.) seed-specific promoters

CA 2448501 C · Owner: Bioriginal Food & Science Corporation · Inventors: Hu, Zhiyuan; Qiu, Xiao; Truksa, Martin

CIPO record

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Abstract From the Canadian patent

The present invention is directed to promoters of flax conlinin and ro-3 desaturase genes. The promoters guide high levels of the expression exclusively in flax developing seeds. This specific expression pattern concomitant with the biosynthesis of storage lipids and proteins make these promoters particularly useful for seed-specific modification of fatty acid and protein compositions in plant seeds.

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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 June 6, 2002 and granted June 4, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 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.
FiledJune 6, 2002
GrantedJune 4, 2013
Term endedJune 6, 2022
Patent numberCA 2448501 C
Classification (IPC)C12N15/82 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 6, 2002Patent grantedJune 4, 2013Term endedJune 6, 2022

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