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Expired Canadian patentCanada

N-(2,2,2-trifluoroethyl)-n-alkyl-azolyloxyacetic acid amides, a process for their preparation and their use as herbicides

CA 1188698 A · Owner: Bayer Aktiengesellschaft · Inventors: Schmidt, Robert; Mues, Volker; Eue, Ludwig

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Abstract From the Canadian patent

New N-(2,2,2-trifluoroethyl)-N-alkyl-azolyloxyacetic acid amides of the general formula in which, R and R1 have the meaning given in the description a process for the production of which is described find, use as herbicides. The intermediate products of the general formulae, (IV), and, (II), in which R1 in each case has the same meaning as in formula (I), for the preparation Or the compounds (I) are also new.

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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

  • Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 12, 1982
GrantedJune 11, 1985
Term endedJune 11, 2002
Patent numberCA 1188698 A
Classification (IPC)C07D277/34 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 12, 1982Patent grantedJune 11, 1985Term endedJune 11, 2002

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.