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Expired Canadian patentCanada

Extracts of shark cartilage having anti-collagenolytic, anti-inflammatory, anti-angiogenic and anti-tumoral activities: process of making metho ds of using and compositions thereof

CA 2236021 C · Owner: Brazeau, Paul · Inventors: Marenus, Kenneth; Maes, Daniel H.; Brazeau, Paul

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Abstract From the Canadian patent

The present invention relates to cartilage extracts and to a method of producing the same. Shark cartilage extracts having anti-angiogenic anti-, tumoral, anti-inflammatory and anti-collagenolytic activites have been obtained by an improved process. The process comprises the steps of obtaining a homogenate of cartilage in an aqueous solution this homogenate being , separated in a solid fraction (SOLID EXTRACT) and a liquid fraction which was further fractionated to obtain a LIQUID EXTRACT having molecules of a molecular weight comprised between 0 to 500 kDa. The composition of the liquid extract has then been investigated by different ways. Further fractionation of this extract led …

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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 August 7, 1996 and granted July 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 1996
GrantedJuly 30, 2002
Term endedAugust 7, 2016
Patent numberCA 2236021 C
Classification (IPC)A61K9/19 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedAug 7, 1996Patent grantedJuly 30, 2002Term endedAug 7, 2016

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