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Expired Canadian patentCanada

Hiv protease inhibitors

CA 2178760 C · Owner: Dorsey, Bruce D. · Inventors: Dorsey, Bruce D.; Vacca, Joseph P.; Huff, Joel R.

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

Compounds of formula (I) are HIV protease inhibitors. These compounds are useful in the prevention or treatment of infection by HIV and in the treatment of AIDS, either as compounds pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators antibi-, otics 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 December 12, 1994 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 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.
FiledDecember 12, 1994
GrantedAugust 1, 2000
Term endedDecember 12, 2014
Patent numberCA 2178760 C
Classification (IPC)C07D491/04 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedDec 12, 1994Patent grantedAug 1, 2000Term endedDec 12, 2014

Sources & verification

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