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Canadian application, no grantCanada

Treatment for cocaine addiction

CA 2048609 A1 · Owner: The United States Of America, Represented By The Secretary, U.S. Departm Ent Of Commerce · Inventors: Weiss, Susan R. B.; Post, Robert M.; Aigner, Thomas G.

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

Toxic effects of cocaine can be blocked by chronic administration of carbamazepine in amount sufficient to achieve a 4-12 µg/ml blood concentration. In addition the dosing with carbamazepine, blocks the reinforcing effects of the cocaine thus decreasing, the likelihood of development of addiction to cocaine.

Read the whole patent

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 March 1, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 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.
FiledMarch 1, 1990
GrantedNo grant recorded
Term endedMarch 1, 2010
Patent numberCA 2048609 A1
Classification (IPC)A61K31/55

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 1, 1990Term endedMarch 1, 2010

Sources & verification

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