Heterocyclic ether and thioether compounds useful in controlling chemical synaptic transmission
CA 2315117 C · Owner: Lynch, John K. · Inventors: Wasicak, James T.; Lin, Nan-Horng; Elliott, Richard L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel compounds having formulas (I), (II) or (III) or pharmaceuticallyacceptable salts or prodrugs thereof, which are useful for controlling synaptic transmission; to therapeutically-effective pharmaceutical compositions of these compounds; and to the use of said compositions to controlling synaptic transmission in human or veterinary patients.
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 December 18, 1998 and granted March 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 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.