Herbicidal compositions of 4-benzoylisoxazole or 2-cyano-1,3-dione herbicides and antidotes therefor
CA 2209937 C · Owner: Lee, David Louis · Inventors: Lee, David Louis; Shribbs, John Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicidal compositions containing 4-benzoylisoxazole or 2-cyano-1,3-dione compounds and antidotal compounds therefor to reduce injury to various crops particularly corn, from the phytotoxic effects of 4-benzoylisoxazole or 2-cyano-1,3-dione herbicides when used alone or in combination with additional pesticidally active ingredients. Methods for reducing phytotoxicity or injury to crop plants particularly corn crops, due to 4-benzoylisoxazole or 2-cyano-1,3-dione herbicides are also described.
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 5, 1996 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2018.
- 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.