Herbicide composition
CA 2425136 A1 · Owner: Wrigley, Peter Ronald · Inventors: Wrigley, Peter Ronald; Killick, Andrew Robert; Morrison, John David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided an essentially non-aqueous homogeneous liquid herbicide composition comprising: a) a lipophilic solvent soluble complex comprising the reaction product of: i) not in excess of about 35 % by weight of one or more lipophobic herbicides having an acidic moiety; and ii) not in excess of about 99 % by weight of one or more tertiary dimethylamines of the structure (CH3)2N- R wherein R contains an alkyl group of at least 8 carbon atoms and may contain other chemical moieties and wherein is at least one mole equivalent of such amine to eachmole of lipophobic herbicide; b) not in excess of about 60 % by weight of one or more essentially non-aqueous polar solvents having low …
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 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2023.
- 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.