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Expired Canadian patentCanada

Hetero f fused carbocyclic pyridines as dopaminergic agents

CA 1292989 C · Owner: Wise, Lawrence D. · Inventors: Jaen, Juan C.; Wise, Lawrence D.; Caprathe, Bradley W.

CIPO record

Overview

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

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Abstract From the Canadian patent

CDDG080387, PD-3560-Cl, ABSTRACT, Hetero f fused carbocyclic pyridines are described, as well as methods for the preparation and pharmaceutical compositions of same, which are useful as dopamine agonists with selectivity for the presynaptic dopamine receptor and are useful as dopaminergic antipsychotic and antihypertensive agents as well as for treating hyperprolactinaemia-related conditions and central nervous system 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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 20, 1987
GrantedDecember 10, 1991
Term endedDecember 10, 2008
Patent numberCA 1292989 C
Classification (IPC)C07D471/04 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 20, 1987Patent grantedDec 10, 1991Term endedDec 10, 2008

Sources & verification

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