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Expired Canadian patentCanada

Discrimination between gnrh-i and gnrh-ii

CA 2421580 C · Owner: Oonk, Hendrica Berendina · Inventors: Turkstra, Jouwert Anne; Meloen, Robert Hans; Oonk, Hendrica Berendina

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

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Abstract From the Canadian patent

A peptide that comprises a modified GnRH decapeptide sequence which allows for a testosterone level that is essentially non-detectable after vaccination with the peptide in a suitable dosage and/or allows for a immunogenic response that allows for the effective discrimination between GnRH-I and GnRH-II and a method for the immunocastration of pigs and for the treatment of prostate cancers of humans

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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 September 11, 2001 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 11, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 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.
FiledSeptember 11, 2001
GrantedNovember 20, 2012
Term endedSeptember 11, 2021
Patent numberCA 2421580 C
Classification (IPC)C07K7/23 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedSep 11, 2001Patent grantedNov 20, 2012Term endedSep 11, 2021

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