Selective herbicides
CA 2072104 A1 · Owner: Maier, Thomas · Inventors: Heinrich, Rudolf; Maier, Thomas; Schumacher, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure:, Selective herbicidal agents The agents according to the invention are stable formulations based on emulsion concentrates and contain a) one or more herbicidal phenoxyphenoxy- or heteroaryloxy-phenoxy-carboxylic acid esters, b) one or more compounds from the group comprising optionally substituted 1-aryl-3-alkoxycarbonyl-5alkyl-1,2,4-triazoles, c) one or more carboxylic acid esters or phosphoric acid esters of aliphatic mono- di- or polyalcohols as a stabilizing agent, d) one or more organic solvents in particular, with a, predominant content of aromatic solvents and, e) one or more emulsifiers and if appropriate wetting agents and customary additives.
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 24, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 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.