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Expired Canadian patentCanada

Novel cyclosporin analog microemulsion preconcentrates

CA 2461730 C · Owner: Yatscoff, Randall W. · Inventors: Yatscoff, Randall W.; Naicker, Selvaraj; Foster, Robert T.

CIPO record

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Abstract From the Canadian patent

The present invention relates to formulations containing cyclosporin analogs that are structurally similar to cyclosporin A in particular isomeric , mixtures of cyclosporin analogs that are structurally similar to cyclosporin A. The formulations form stable microemulsion preconcentrates and may provide superior drug bioavailability and/or may reduce one or more adverse effects associated with the administration of cyclosporin. Also disclosed are methods for using and preparing the formulations.

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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 October 17, 2002 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 17, 2002
GrantedMay 15, 2012
Term endedOctober 17, 2022
Patent numberCA 2461730 C
Classification (IPC)A61K9/10 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 17, 2002Patent grantedMay 15, 2012Term endedOct 17, 2022

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