Pesticide preparations comprising copolymers
CA 2451237 A1 · Owner: Clariant Gmbh · Inventors: Scherl, Franz Xaver; Meyer, Gerd Roland; Zerrer, Ralf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to pesticide preparations containing copolymers. Said preparations are obtained by the copolymerisation of a) glycerol b) at least , one dicarboxylic acid and c) at least one monocarboxylic acid according to formula (I): R1-COOH, wherein R1 represents (C5-C29) alkyl (C7-C29) alkenyl, phenyl or naphthyl. The copolymers increase the biological activity of the pesticides. Said pesticides preferably take the form of herbicides.
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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 June 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.