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Expired Canadian patentCanada

Association of physiologically dosed vitamin a and of various active principles having a therapeutical activity

CA 2018227 C · Owner: Grimberg, Georges Serge · Inventors: Grimberg, Georges Serge

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

The association of physiologically dosed vitamin A and of various active principles having a therapeutical activity such as mineral and/or organic sulphur, associated or not with biologically active principles such as dead yeast, lactobacilli gastro-, intestinal germs or others, dead or attenuated characte-, rized in that the vitamin A dose per capsule for the adult is at most 1700 I.U.

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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 June 4, 1990 and granted February 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 4, 1990
GrantedFebruary 25, 1997
Term endedJune 4, 2010
Patent numberCA 2018227 C
Classification (IPC)A61K39/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 4, 1990Patent grantedFeb 25, 1997Term endedJune 4, 2010

Sources & verification

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