Canadian application, no grantCanada
Solid and liquid-phase synthesis of benzoxazoles and benzothiazoles and their use
CA 2301227 A1 · Owner: Sepracor Inc. · Inventors: Wang, Fengjiang
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods for preparing benzoxazoles and benzothiazoles on solid supports. Substituted benzothiazoles and benzoxazoles libraries of the compounds, and , methods of using the compounds are also disclosed.
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 August 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 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.
FiledAugust 18, 1998
GrantedNo grant recorded
Term endedAugust 18, 2018
Patent numberCA 2301227 A1
Classification (IPC)C07D277/60 +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.