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Expired Canadian patentCanada

Use of untranslated region of osmotin gene to enhance transgene expression in plants

CA 2452131 C · Owner: Liu, Dong · Inventors: Burton, Stephanie Love; Liu, Dong; Glancy, Todd Philip

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Abstract From the Canadian patent

The present invention provides methods vectors and gene constructs for enhancing expression of a recombinant nucleic acid sequence in transgenic plants and plant tissues. According to the present invention nucleic acid sequences are obtained and/or derived from the 5' and 3' untranslated regions of genes encoding osmotin proteins and engineered to flank respective portions of a selected coding region of a vector. The vector construct may be introduced into plants and/or plant tissues through conventional procedures resulting in enhanced expression of the selected coding region. In a preferred embodiment the selected coding region is a chimeric gene or gene fragment expressing one or more …

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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 January 6, 2004 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 6, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 2004
GrantedMarch 19, 2013
Term endedJanuary 6, 2024
Patent numberCA 2452131 C
Classification (IPC)C12N15/82 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJan 6, 2004Patent grantedMarch 19, 2013Term endedJan 6, 2024

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