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Canadian application, no grantCanada

2-oxo- and 2-thio-1,2- dihydroquinolinyl-oxazolidinones

CA 2194945 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Ruppelt, Martin; Riedl, Bernd; Bartel, Stephan

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 relates to 2-oxo- and 2-thio-1,2-dihydroquinolinyl-oxazolidinones processes for their preparation and their use as medicaments in particular as, antibacterial medicaments.

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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 January 13, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 13, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 13, 1997
GrantedNo grant recorded
Term endedJanuary 13, 2017
Patent numberCA 2194945 A1
Classification (IPC)C07D413/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJan 13, 1997Term endedJan 13, 2017

Sources & verification

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