Patent Yard Sign in
Expired Canadian patentCanada

Fused bicyclic imides with psychotropic activity

CA 1286672 C · Owner: American Home Products Corporation · Inventors: Abou-Gharbia, Magid A.

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

There are disclosed compounds of the formula wherein R represents the structure, or -CHR1-CHR2in which R1 and R2 taken together represents with the proviso that when in Y, o is zero p is other than zero;, R3 is unsubstituted or substituted phenyl 2-pyridinyl, 2-pyri-, midinyl, 2-pyrazinyl or 3-pyridazinyl where the substituents are, selected from the group lower alkyl lower alkoxy, halo cyano, nitro and trifluoromethyl Y is -(CH2)o- or vinylene; x is lower, alkylene vinylene or 0; m is 2-4; o is 0-3; p is 0-4; ..... represents a single or double bond; with the proviso that in the structure, the sum of o and p is ? 1; and the pharmaceutically acceptable salts thereof and their use as …

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

  • Granted July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.
FiledOctober 8, 1986
GrantedJuly 23, 1991
Term endedJuly 23, 2008
Patent numberCA 1286672 C
Classification (IPC)C07D401/14 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 8, 1986Patent grantedJuly 23, 1991Term endedJuly 23, 2008

Sources & verification

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