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Expired Canadian patentCanada

A method of chromatographic isolation for non-glyceride components

CA 2325224 C · Owner: Basiron, Yusof · Inventors: Basiron, Yusof; Choo, Yuen May; Ma, Ah Ngan

CIPO record

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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 method of chromatographic isolation for non-glyceride components (squalenes carotenes, vitamin E, sterols and/or the like) from a non-glyceride components-comprising compound by, said method including the steps of a. introducing the non-glyceride components-comprising compound onto a selective adsorbent to allow an adsorption of the non-glyceride components and , subsequently, b. desorbing the non-glyceride components from the adsorbent wherein, the adsorption and/or desorption of the non-glyceride components is carried out , under a supercritical fluid environment.

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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 November 6, 2000 and granted March 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.
FiledNovember 6, 2000
GrantedMarch 15, 2011
Term endedNovember 6, 2020
Patent numberCA 2325224 C
Classification (IPC)C07C403/24 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedNov 6, 2000Patent grantedMarch 15, 2011Term endedNov 6, 2020

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