Pyridine-3-sulfonyl compounds as pesticidal agents
CA 2465818 A1 · Owner: Treacy, Michael F. · Inventors: Culbertson, Deborah; Haley, Gregory J.; Treacy, Michael F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention describes novel pyridine-3-sulfonyl compounds having the formula (I) wherein R1,R2,R3,R4 and R5 are as defined herein.The present invention is also directed to pesticidal compositions that include a)compounds of formula (II) wherein R1,R2,R3,R4 and R6 are as defined herein and b)a carrier.Moreover, the present invention relates to methods for protecting crops from insect attack by contacting the crop with a pesticidally effective amount of the compound of formula (II). In addition the present invention , includes methods for controlling insects by treating the target species with a pesticidally effective amount of the compound of formula (II).
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 November 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2024.
- 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.