Pyrrole carbonitrile and nitropyrrole insecticidal, acaricidal and molluscicidal agents and methods for the preparation thereof
CA 2004388 C · Owner: American Cyanamid Company · Inventors: Wright, Donald P. Jr; Kukel, Christine F.; Addor, Roger W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are provided certain insecticidal acaricidal, and molluscicidal pyrrole carbonitrile and nitropyrrole compounds and a method for controlling insects acarids and, mollusks therewith. The invention also provides a method for protecting growing plants from insect, acarid and mollusk attack by applying to said plants or the soil or water in which they are growing, an insecticidally acaricidally or, molluscicidally effective amount of a pyrrole carbonitrile or nitropyrrole compound. The present invention further relates to methods for the preparation of said pyrrole carbonitrile and nitropyrrole compounds. The pyrrole carbonitrile and nitropyrrole compounds have the general formula (see …
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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 1, 1989 and granted December 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2011.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.