Fluoro-substituted adamantane derivatives
CA 2234319 C · Owner: Jasys, Vytautus John · Inventors: Volkmann, Robert Alfred; Jasys, Vytautus John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are the fluoro-substituted adamantane derivatives of the formula, (see fig. I) and to pharmaceutically acceptable salts thereof wherein R1, R2, R3, and R4 are as defined herein. Preferably R1 is -CO2H or -NH2 and R2, R3 and R4 are each fluoro. Disclosed also is a pharmaceutical composition for treating neurological disorders, such as memory loss and Parkinson's disease and, bacterial and viral infections, comprising a therapeutically effective amount of a compound of formula 1 or a pharmaceutically acceptable salt thereof together with a, pharmaceutically acceptable carrier.
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 April 8, 1998 and granted March 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2020.
- 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
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.