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Expired Canadian patentCanada

Immediate-effect ibuprofen-containing medicament and its use

CA 2125281 C · Owner: Alfatec-Pharma Gmbh · Inventors: Schuster, Otto; Lukas, Helmut; Wunderlich, Jens-Christian

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

A medicament for immediately treating painful inflammatory and/or febrile diseases contains as active substance ibuprofen as a racemate, as a racemic mixture with its enantiomers, as a pseudoracemate (mixtures of equal parts of S- and R-ibuprofen) or as a mixture of different parts of S- and R-ibuprofen in a range between pure Sand pure R-ibuprofen in the form of a pharmaceutically applicable nanosol and satisfies all requirements of an immediate-effect pharmaceutical form. It can in addition be combined with a slow-release, medicament that contains as active substance ibuprofen as a racemic compound as a, pseudoracemate (mixtures of equal parts of S- and R ibuprofen) or as a mixture of …

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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 December 4, 1992 and granted September 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 4, 1992
GrantedSeptember 22, 1998
Term endedDecember 4, 2012
Patent numberCA 2125281 C
Classification (IPC)A61K31/19 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 4, 1992Patent grantedSep 22, 1998Term endedDec 4, 2012

Sources & verification

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