Parasiticidal pyrazoles
CA 2260412 C · Owner: Banks, Bernard Joseph · Inventors: Banks, Bernard Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I): (see fig I) or pharmaceutically veterinarily or agriculturally acceptable salts thereof or pharmaceutically, veterinarily or agriculturally acceptable solvates of either entity wherein R1 is 2,4,6-trisubstituted phenyl or 3,5-disubstituted pyridin- 2-yl; R3 is hydrogen; C2 to C5 alkyl substituted with one or more halo and with hydroxy; C2 to C5 alkanoyl substituted with one or more halo; C2 to C6 alkenyl optionally substituted with one or more halo; halo; amino or CONH2; R5 is hydrogen amino or halo; R2 and R4 are each independently selected from hydrogen fluoro, chloro and bromo; R6 and R8 are hydrogen; and R7 is hydrogen or C1 to C4 alkyl optionally substituted …
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 January 27, 1999 and granted December 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2021.
- 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.