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Expired Canadian patentCanada

2-(n-pyrrolidino)-3-isobutoxy-n-substituted phenyl-n- benzyl-propylamines, their preparation and pharmaceutical use

CA 1235417 A · Owner: Riom Laboratoires C.E.R.M. "Rl-Cerm" S.A. · Inventors: Combourieu, Michel; Monteil, Andre J.; Simond, Jacques A.L.

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

Compounds of the formula:, in which X represents one or two radicals selected from halogen, hydroxyl, alkoxy, alkyl, trifluoromethyl or methylenedioxy radicals, and their pharmaceutically acceptable salts, which may be used in the treatment of cardiovascular disturbances such as angina pectoris, hypertension and rhythmic disorders.

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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

  • Granted April 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 19, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 26, 1984
GrantedApril 19, 1988
Term endedApril 19, 2005
Patent numberCA 1235417 A
Classification (IPC)C07D295/12 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedSep 26, 1984Patent grantedApril 19, 1988Term endedApril 19, 2005

Sources & verification

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