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Expired Canadian patentCanada

Oral pharmaceutical composition of piperidinoalkanol compounds in solution form

CA 2218643 C · Owner: Aventis Holdings Inc. · Inventors: Ortyl, Thomas T.; Skultety, Paul F.; Hurst, Gail H.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention provides an oral pharmaceutical composition in solution form, comprising, a) a therapeutically effective amount of a piperidinoalkanol compound or a pharmaceutically acceptable salt thereof; and b) a suitable solvent system.

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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

  • Filed April 30, 1996 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 1996
GrantedDecember 11, 2001
Term endedApril 30, 2016
Patent numberCA 2218643 C
Classification (IPC)A61K31/44 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 30, 1996Patent grantedDec 11, 2001Term endedApril 30, 2016

Sources & verification

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