Expired Canadian patentCanada
2-fluoro-2-substituted adeninyl arabinosides as anti-cancer agents
CA 2102782 C · Owner: Secrist, John A. · Inventors: Montgomery, John A.; Secrist, John A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present inventon is directed to certain 2'-fluoro 2-substituted purine , nucleosides which are cytotoxic to cancerous cell lines and inhibit ribonucleotide reductase and DNA polymerase.
Read the whole patent
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 May 7, 1992 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1992
GrantedSeptember 16, 2003
Term endedMay 7, 2012
Patent numberCA 2102782 C
Classification (IPC)C07H19/19 +2 more
Timeline
Timeline From CIPO dates
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.