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Expired Canadian patentCanada

Compositions for treating tobacco withdrawal symptoms

CA 2001572 C · Owner: Wurtman, Judith J. · Inventors: Spring, Bonnie; Wurtman, Judith J.; Wurtman, Richard J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Compositions useful in the treatment of disturbances of appetite, disturbances of mood or, both, nicotine withdrawal associated as well as experienced by individuals after discontinuing tobacco use as methods of use therefor. The compositions include serotoninergic drugs, such as, d-fenfluramine and fluoxetine.

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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 October 26, 1989 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 26, 1989
GrantedJanuary 2, 2001
Term endedOctober 26, 2009
Patent numberCA 2001572 C
Classification (IPC)A61K31/13 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 26, 1989Patent grantedJan 2, 2001Term endedOct 26, 2009

Sources & verification

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