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Expired Canadian patentCanada

Method for transplantation of fertilized ova

CA 2017155 C · Owner: Katsumi, Akira · Inventors: Katsumi, Akira

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

First the recipient animal is administered a parasympatholytic agent, after which a fertilized, ova is transplanted in the animal. Also disclosed ia a veterinary composition as an adjunct to transplantation of fertilized ova which is characterized by containing a parasympatholytic agent as an active ingredient.

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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 May 18, 1990 and granted August 20, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 18, 1990
GrantedAugust 20, 1996
Term endedMay 18, 2010
Patent numberCA 2017155 C
Classification (IPC)A61K31/40 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 18, 1990Patent grantedAug 20, 1996Term endedMay 18, 2010

Sources & verification

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