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Expired Canadian patentCanada

Substituted quinazolines as antiviral agents, especially against cytomegaloviruses

CA 2505183 C · Owner: Aic246 Gmbh & Co. Kg · Inventors: Jeske, Mario; Zimmermann, Holger; Wunberg, Tobias

CIPO record

Overview

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Abstract From the Canadian patent

The invention relates to substituted quinazolines and to methods for the production thereof, in addition to the use thereof in the production of medicaments for the, treatment and/or prophylaxis of diseases especially for use as antiviral , agents especially, against cytomegaloviruses.

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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 25, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2025.
  • 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 25, 2003
GrantedJanuary 3, 2012
Term endedOctober 25, 2023
Patent numberCA 2505183 C
Classification (IPC)C07D239/74 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 25, 2003Patent grantedJan 3, 2012Term endedOct 25, 2023

Sources & verification

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