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Expired Canadian patentCanada

Udp-glucose epimerases

CA 2359803 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Carlson, Thomas J.; Fader, Gary M.

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

This invention relates to an isolated nucleic acid fragment encoding a UDPgalactose 4-epimerase. The invention also relates to the construction of a chimeric gene encoding all or a portion of the UDP-galactose 4-epimerase in , sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the UDP-galactose 4-epimerase in a transformed host cell.

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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 February 9, 2000 and granted April 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 9, 2000
GrantedApril 9, 2013
Term endedFebruary 9, 2020
Patent numberCA 2359803 C
Classification (IPC)C12N15/61 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 9, 2000Patent grantedApril 9, 2013Term endedFeb 9, 2020

Sources & verification

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