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Canadian application, no grantCanada

Prodrugs of an inhibitor of hiv protease

CA 2174649 A1 · Owner: Merck & Co. Inc. · Inventors: Dorsey, Bruce D.; Repta, Arnold J.; Bindra, Dilbir

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Prodrugs of formula (I) are useful in the inhibition of HIV protease, the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.

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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 November 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1994
GrantedNo grant recorded
Term endedNovember 14, 2014
Patent numberCA 2174649 A1
Classification (IPC)C07D401/06 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 14, 1994Term endedNov 14, 2014

Sources & verification

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