Fatty acid based herbicidal compositions
CA 2067773 A1 · Owner: Bradbury, Roderick S. · Inventors: Bradbury, Roderick S.; Mason, Wenda; Puritch, George S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An environmentally compatible herbicidal composition comprises a fatty acid active ingredient and a surfactant component. In one embodiment the composition comprises a ready-to-use microemulsion having a fatty acid active ingredient, one or more quaternary ammonium salt surfactants and water. Another embodiment comprises a concentrated herbicidal formulation having a fatty acid active ingredient and one or more surfactants. The concentrate may subsequently be diluted with water to yield a ready-to-use formulation. Each of these compositions is a foliar applied herbicide which effectively controls a variety of unwanted weed and grass species. The fatty acid component of these herbicidal …
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 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 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.