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Expired Canadian patentCanada

2-aminooctahydroindolo 2,3-a quinolizine compounds

CA 1108147 A · Owner: Miles, Laboratories, Inc. · Inventors: Havera, Herbert J.; Johnson, Richard D.; Vidrio, Horacio

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Abstract From the Canadian patent

Docket No. 11807, 2-AMINOOCTAHYDROINDOLO2,3-aQUINOLIZINE COMPOUNDS ABSTRACT, Novel compounds having the structural formula wherein R1 is hydrogen, i-propyl, phenyl or a substituted phenyl having the structure , wherein R2 is halogen, methoxy, lower alkyl, nitro, trifluoromethyl acetamido, or sulfonamido and their acid addition salts are, useful for treatment of cardiovascular disorders such as cardiac arrhythmia, hypertension, and angina pectoris. Methods for preparation and use of these compounds are described.

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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 5, 1979
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108147 A
Classification (IPC)C07D471/14

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJune 5, 1979Patent grantedSep 1, 1981Term endedSep 1, 1998

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