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Expired Canadian patentCanada

Process for producing highly unsaturated fatty acid-containing lipid

CA 2483522 C · Owner: Suntory Holdings Limited · Inventors: Ono, Kazuhisa; Higashiyama, Kenichi; Aki, Tsunehiro

CIPO record

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Abstract From the Canadian patent

The present invention provides a process for producing a highly unsaturated fatty acid-containing lipid which is less expensive than existing ones, which comprises culturing a microorganism belonging to the genus Mortierella with the use of, as a medium carbon source, a saccharified starch which is, less expensive than glucose, does not contribute to an increase in osmotic pressure of the culture medium and can be utilized, by the Mortierella microorganism and collecting a highly, unsaturated fatty acid-containing lipid from the culture.

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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 April 25, 2003 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 25, 2003
GrantedJanuary 22, 2013
Term endedApril 25, 2023
Patent numberCA 2483522 C
Classification (IPC)C12P7/64

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 25, 2003Patent grantedJan 22, 2013Term endedApril 25, 2023

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