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Expired Canadian patentCanada

Stabilized denatured lipoprotein and method for producing thereof

CA 2375868 C · Owner: Kohno, Hiroaki · Inventors: Shigematsu, Takashi; Kimura, Junji; Kohno, Hiroaki

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Abstract From the Canadian patent

Denatured lipoprotein excelling in stability of prolonged preservation (namely exhibiting only sparing liability to induce denaturation of lipoprotein) and used as a standard substance for the determination of denatured lipoprotein in blood or the determination of the physiological activity of the lipoprotein and a method for the production thereof are provided. The method for the production of the stabilized denatured lipoprotein comprises artificially denaturing lipoprotein, thereby obtaining denatured lipoprotein, freeze-drying the denatured lipoprotein or performing a process including at least one freezing operation on a solution containing denatured lipoprotein thereby …

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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 26, 2000 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 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.
FiledMay 26, 2000
GrantedOctober 30, 2012
Term endedMay 26, 2020
Patent numberCA 2375868 C
Classification (IPC)C07K14/77 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMay 26, 2000Patent grantedOct 30, 2012Term endedMay 26, 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.