Arylpyrrole insecticidal, acaricidal and nematicidal agents and methods
CA 2022975 C · Owner: Brown, Dale G. · Inventors: Brown, Dale G.; Diehl, Robert E.; Wright, Donald P. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to certain novel insecticidal, acaricidal and nematicidal arylpyrrole agents and a method for controlling insects acarids, and nematodes therewith. The invention also is directed to a method for protecting growing plants from insect, acarid and nematode attack by applying to said plants or the soil in which they are growing an, insecticidally, acaricidally or nematicidally effective amount of a novel arylpyrrole compound. The present invention further is directed to a method for the preparation of the arylpyrrole compounds.
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 9, 1990 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2012.
- 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.