Novel compounds
CA 2394864 A1 · Owner: Brown, William · Inventors: Walpole, Christopher; Brown, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of general formula (I), R1 is selected from any one of phenyl pyridinyl, thiophenyl, furanyl, imidazolyl and triazolyl; where each R1 , phenyl ring and R1 heteroaromatic ring may optionally and independently be further substituted by 1, 2 or 3 substituents selected from straight and branched C1-C6 alkyl, NO2, CF3, C1-C6 alkoxy chloro, fluoro, bromo, and iodo. , The substitutions on the phenyl ring and on the heteroaromatic ring may take place in any position on said ring systems; Ra and Rb is each and individually selected from any one of hydrogen, a straight and branched C1-C6 alkyl NO2, CF3, C1-C6 alkoxy, chloro, fluoro bromo, and iodo; are disclosed and claimed in the …
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 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2022.
- 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.