Synergistic herbicidal compositions
CA 2073597 A1 · Owner: Hess, Martin · Inventors: Schumacher, Hans; Hess, Martin; Hacker, Erwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure: Synergistic herbicidal compositions, The invention relates to herbicidal compositions which comprise, A) a compound of the formula I or salts thereof (I), in combination with, B) one or more compounds selected from the group comprising growth-regulator-type herbicides dicamba, and its salts, diflufenican, nitrodiphenyl ethers sulfonylureas which differ from that of the formula (I) and their salts, and selective grass herbicides. They are particularly suitable for selectively controlling weeds in rice, soya and other crops.
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 July 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 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.