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Expired Canadian patentCanada

Intragonadal regulatory protein

CA 1268417 C · Owner: The University Of Southern California · Inventors: Dizerega, Gere S.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure A proteinaceous substance having a molecular weight of from about 5,500 to 18,000 and an isoelectric point of from about pH 3.5 to pH 6.5, and having distinguishing elution profiles and electrophoretic patterns is shown to non-competitively inhibit aromatase activity, modulate 3.beta.-ol hydrogenase activity and inhibit, spermatogenesis and the formation of mature ova substantially independently of exoganous sex steroids.

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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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
  • 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 25, 1985
GrantedMay 1, 1990
Term endedMay 1, 2007
Patent numberCA 1268417 C
Classification (IPC)C07K14/47 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedSep 25, 1985Patent grantedMay 1, 1990Term endedMay 1, 2007

Sources & verification

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