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Expired Canadian patentCanada

Antitumor effect potentiators

CA 2413313 C · Owner: Tanaka, Hiroshi · Inventors: Kawaguchi, Takafumi; Otsuki, Makio; Tanaka, Hiroshi

CIPO record

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Abstract From the Canadian patent

When used concurrently with an antitumor agent a , compound having a Rho kinase inhibitory activity such as , (R)-(+)-N-(4-pyridyl)-4-(1-aminoethyl)benzamide reinforces an , antitumor effect of the antitumor agent and is useful as an antitumor effect potentiator. Particularly a compound having a Rho kinase inhibitory activity used with an antitumor agent in combination can reduce the dose of the antitumor agent which in turn affords , provision of a sufficient effect and/or reduction of side effects.

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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 June 22, 2001 and granted June 14, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 22, 2001
GrantedJune 14, 2011
Term endedJune 22, 2021
Patent numberCA 2413313 C
Classification (IPC)A61K33/24 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJune 22, 2001Patent grantedJune 14, 2011Term endedJune 22, 2021

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