Herbicidal compositions containing 4-(phenoxymethyl)- phenoxypropionic acid derivatives
CA 1104367 A · Owner: Celamerck G.M.B.H. & Co. Kg · Inventors: Curtze, Jurgen; Thomas, Klaus; Mehrhof, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for selectively combatting weeds in an infected cultivated plant locus which comprises applying to the plant locus an amount effective to kill the weeds without phytotoxic effect to the plants of a composition containing at least one compound of the formula, wherein Z represents OH or OR in which R represents an alkyl, group of 1 to 4 carbon atoms an ammonium cation, a mono-, di-, or trialkyl ammonium cation or an inorganic cation, together, with an agriculturally acceptable carrier.
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
- Granted July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.