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Expired Canadian patentCanada

Tricyclic compounds useful for inhibition of g-protein function and for treatment of proliferative diseases

CA 2264569 C · Owner: Mallams, Alan K. · Inventors: Mallams, Alan K.; Njoroge, F. George; Taveras, Arthur G.

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

Compounds of formula (1.0), their use as farnesyl transferase protein inhibitors and pharmaceutical compositions containing them are disclosed especially compounds of formula (1.5A) wherein R1 R2 and R3 are halo, A and B , are each H2 and R is as defined in the specification.

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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, 1997 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 11, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2019.
  • 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, 1997
GrantedNovember 11, 2003
Term endedSeptember 11, 2017
Patent numberCA 2264569 C
Classification (IPC)C07D401/14 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedSep 11, 1997Patent grantedNov 11, 2003Term endedSep 11, 2017

Sources & verification

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