Herbicidal composition
CA 2080400 C · Owner: Sakaki, Masaharu · Inventors: Saitoh, Kazuo; Sakaki, Masaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a herbicidal composition containing (a) 2-4-chloro-2-fluoro-5-(n-pentyloxycarbonylmethoxy)phenyl-4,5,6,7-tetrahydro-2H-isoindole- 1,3-dione and (b) at least one compound selected from the group consisting of N-(phosphonomethyl)glycine (2-amino-4-, methylphosphinobutyryl)alanylalanine DL-homoalanin-4-methyl-, yl(methyl)phosphinic acid and salts thereof. The invention is also directed to a method for controlling undesired weeds by application of the herbicidal composition.
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 October 13, 1992 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2014.
- 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.