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Expired Canadian patentCanada

Arylamides

CA 2494846 C · Owner: Pernerstorfer, Josef · Inventors: Schiffer, Guido; Nell, Peter; Freiberg, Christoph

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Abstract From the Canadian patent

The present invention relates to compounds to processes for , preparing them, to pharmaceutical compositions comprising them and to their , use , in the therapy and/or prophylaxis of diseases in people or animals especially , diseases of bacterial infection. In a specific embodiment the invention , relates to a , compound of the formula (see formula I), in which R1 is heteroaryl etc, where heteroaryl can be substituted by 0 1, 2 , or 3 , substituents R1-1, the substituents R1-1 being selected independently of one another from the group consisting of halogen alkyl, nitro, etc, R2 is , hydrogen or methyl, R3 is hydrogen, hydroxyl, amino etc, R4 is hydrogen or C1-C3 alkyl, R5 is halogen, …

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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 July 28, 2003 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 28, 2003
GrantedJanuary 17, 2012
Term endedJuly 28, 2023
Patent numberCA 2494846 C
Classification (IPC)C07D409/12 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 28, 2003Patent grantedJan 17, 2012Term endedJuly 28, 2023

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