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Expired Canadian patentCanada

Compounds and compositions which inhibit bone resorption

CA 2096933 C · Owner: Nicholson, Geoffrey C. · Inventors: Fenton, Anna J.; Nicholson, Geoffrey C.; Martin, Thomas J.

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Abstract From the Canadian patent

Carboxyl terminal fragments of PTHcP also known by the name adenylate cyclase stimulating factor ACSF and bone rel-, easing factor BRF are shown to possess bone resorption inhibitory activity which is an opposite activity to that embodied by the complete PTHrP sequence and N-terminal fragments thereof. There is described compounds having bone resorption Inhibitory activity which comprise carboxy terminal fragment of PTHrP consisting of at least amino acids 107-111 of PTHrP, or a derivative thereof. Methods for the inhibition of bone resorption and methods for the , treatment of diseases characterised by excess bone resorption are also described, which methods comprise administering to a …

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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 December 13, 1991 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 13, 1991
GrantedMay 13, 2003
Term endedDecember 13, 2011
Patent numberCA 2096933 C
Classification (IPC)C07K14/63 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedDec 13, 1991Patent grantedMay 13, 2003Term endedDec 13, 2011

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