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Expired Canadian patentCanada

Gnrh antagonists viii

CA 1302650 C · Owner: The Salk Institute For Biological Studies · Inventors: Vale, Wylie W. Jr.; Rivier, Jean E.F.

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Abstract From the Canadian patent

GnRH ANTAGONISTS VII, ABSTRACT OF THE DISCLOSURE Peptides which inhibit the secretion of gonadotropins by the pituitary gland and inhibit the release of steroids by the gonads. Administration of an effective amount prevents ovulation of female mammalian eggs and/or the release of steroids by the gonads. The peptides have the structure: X-R1-(W)D-Phe-R3-R4- R5-R6-R7-Arg-Pro-R10 wherein X is hydrogen or an acyl group having 7 or less carbon atoms; R1 is dehydro-Pro, D-pGlu, D-Phe, 4Cl-D-Phe, D-Trp Pro, or, B-D-NAL; W is Cl, F, NO2, C?Me/4Cl Cl2 or Br; R3, is D-3PAL, B-D-NAL or (Y)D-Trp with Y being H, NO2, NH2, OCH3, F, Cl, Br CH3, NinFor or NinAc;, R4 is Ser, Orn, AAL or aBu; R5 is Tyr Arg, …

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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 19, 1985
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302650 C
Classification (IPC)C07K7/23 +1 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedApril 19, 1985Patent grantedJune 2, 1992Term endedJune 2, 2009

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