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Expired Canadian patentCanada

Novel bicyclic and tricyclic cannabinoids

CA 2452881 C · Owner: Khanolkar, Atmaram D. · Inventors: Makriyannis, Alexandros; Khanolkar, Atmaram D.; Nikas, Spyridon P.

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

Novel bicyclic-cannabinoids and hexahydrocannabinol analogs according to formula 1 are presented. These compounds when administered in a , therapeutically effective amount to an individual or animal results in a , sufficiently , high level of that compound in the individual or animal to cause a physiological , response. The physiological response useful to treat a number of physiological conditions, (see formula I)

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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 July 11, 2002 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 11, 2002
GrantedMarch 6, 2012
Term endedJuly 11, 2022
Patent numberCA 2452881 C
Classification (IPC)C07C49/11 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJuly 11, 2002Patent grantedMarch 6, 2012Term endedJuly 11, 2022

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