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Expired Canadian patentCanada

A recombinant promoter for gene expression in monocotyledonous plants

CA 2042831 C · Owner: Chamberlain, Douglas A. · Inventors: Brettell, Richard I. S.; Olive, Mark R.; Chamberlain, Douglas A.

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

A recombinant promoter molecule for enhancing expression of a plant-expressible structural gene in a monocot plant cell is provided comprising a plurality of enhancer elements selected from the group consisting of ARE and OCS elements a truncated, plant-expressible promoter and an intron.

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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, 1991 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2013.
  • 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, 1991
GrantedJuly 25, 2000
Term endedMay 17, 2011
Patent numberCA 2042831 C
Classification (IPC)C12N15/82 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 17, 1991Patent grantedJuly 25, 2000Term endedMay 17, 2011

Sources & verification

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