Patent Yard Sign in
Expired Canadian patentCanada

Method and means for treating alcoholism by extinguishing the alcohol-drinking response using a transdermally administered opiate antagonist

CA 2030237 C · Owner: Contral Clinics Oy · Inventors: Sinclair, John David

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A method for treating alcoholism by extinguishing the alcohol-drinking response in which an opiate antagonist is transdermally administered to a subject and a device for transdermally administering the antagonist. The device is a package containing a fixed dose of opiate antagonist, a vehicle and a permeation enhancer.

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 November 19, 1990 and granted December 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.
FiledNovember 19, 1990
GrantedDecember 30, 1997
Term endedNovember 19, 2010
Patent numberCA 2030237 C
Classification (IPC)A61K9/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 19, 1990Patent grantedDec 30, 1997Term endedNov 19, 2010

Sources & verification

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