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Expired Canadian patentCanada

Aqueous non-aggressive anthelmintic pour-on formulations

CA 1252039 A · Owner: Janssen Pharmaceutica Naamloze Vennootschap · Inventors: Van Der Veken, Guido J.L.; Ligtvoet, Theo F.M.C.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Aqueous pour-on formulations for combatting helmintic infestations in non-human animals, containing a pharmaceutically acceptable acid addition salt of tetramisole and/or levamisole. The formulations of the present invention include a vehicle consisting of from 1 to 60 v/v of a penetration enhancing and/or moistening agent in water. The pour-on method of systematically administering drugs offers distinct advantages over the parenteral methods. For example, there is no need to hold the animal, serile precautions are not necessary and specially trained staff is not required. Furthermore in comparison with, oral administration methods the pour-on method has the advantage, that each animal …

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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

  • Granted April 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 29, 1984
GrantedApril 4, 1989
Term endedApril 4, 2006
Patent numberCA 1252039 A
Classification (IPC)A61K31/42 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedNov 29, 1984Patent grantedApril 4, 1989Term endedApril 4, 2006

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