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Expired Canadian patentCanada

Combination antiemetic therapy using nk-1 receptor antagonists

CA 2188227 C · Owner: Silberman, Sandra L. · Inventors: Gonsalves, Susan F.; Silberman, Sandra L.; Watson, John W.

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

The present invention relates to pharmaceutical compositions for treating or preventing emesis in mammals including humans, using an NK-1 antagonist in combination with one or more other active agents selected from (a) a glucocorticoid or corticosteroid, (b) a benzodiazepine (c), metaclopramide and (d) an intracellular molecular scavenger. The combination has a synergistic antiemetic effect.

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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 October 18, 1996 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 18, 1996
GrantedAugust 8, 2000
Term endedOctober 18, 2016
Patent numberCA 2188227 C
Classification (IPC)A61K31/56 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 18, 1996Patent grantedAug 8, 2000Term endedOct 18, 2016

Sources & verification

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