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Expired Canadian patentCanada

Endoparasiticidal compositions comprising a cyclic depsipeptide

CA 2400610 C · Owner: Bayer Aktiengesellschaft · Inventors: Harder, Achim; Traubel, Michael; Kalbe, Jochen

CIPO record

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Abstract From the Canadian patent

The present invention provides topically administrable endoparasiticidal compositions , comprising cyclic and open-chain depsipeptides consisting of amino acid and hydroxycarboxylic acid building blocks and containing 6 to 30 ring or chain atoms, their preparation and their use as endoparasiticides.

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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 February 9, 2001 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 9, 2001
GrantedJanuary 22, 2013
Term endedFebruary 9, 2021
Patent numberCA 2400610 C
Classification (IPC)A61K38/15 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedFeb 9, 2001Patent grantedJan 22, 2013Term endedFeb 9, 2021

Sources & verification

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