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Expired Canadian patentCanada

L-ergothioneine, milk thistle, and s-adenosylmethionine for the prevention, treatment and repair of liver damage

CA 2321565 C · Owner: Corson, Barbara E. · Inventors: Corson, Barbara E.; Henderson, Todd R.

CIPO record

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Abstract From the Canadian patent

This invention provides therapeutic compositions for the protection treatment , and repair of liver tissue. The invention relates to novel compositions comprising two or more compounds selected from the group consisting of Sadenosylmethionine, L-ergothioneine, and a compound selected from the group consisting of Milk thistle (Silybum marianum) silymarin and active components , of silymarin whether naturally, synthetically, or semi-synthetically derived and to methods of preventing and treating liver disease and of repairing damaged liver tissue. The invention also provides a method of administering these compositions to humans or animals in need thereof.

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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 24, 1999 and granted October 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2021.
  • 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 24, 1999
GrantedOctober 14, 2014
Term endedFebruary 24, 2019
Patent numberCA 2321565 C
Classification (IPC)A61K36/28 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedFeb 24, 1999Patent grantedOct 14, 2014Term endedFeb 24, 2019

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