Nucleic acid binding compounds containing pyrazolo3,4-dpyrimidine analogues of purin-2,6-diamine and their uses
CA 2416631 C · Owner: F. Hoffmann-La Roche Ag · Inventors: Becher, Georg; Seela, Frank; Heindl, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is in the field of nucleic acid binding compounds comprising 7-substituted 7-deaza-8aza-2,6-diamino-purine bases compounds , useful for the preparation of such compounds various uses thereof and methods , for the determination of nucleic acids using said compounds in the field of diagnostics.
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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 July 31, 2001 and granted November 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 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.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.