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Expired Canadian patentCanada

Fungicidally active cyclopropanecarboxylic acid anilides

CA 1108161 A · Owner: Schering Aktiengesellschaft · Inventors: Pieroh, Ernst A.; Buhmann, Ulrich; Puttner, Reinhold

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Abstract From the Canadian patent

The present invention provides a fungicidally active cyclopropanecarboxylic acid anilides of the general formula I in which, R1 represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, R2 represents an unsubstituted phenyl group or a phenyl group substituted by one or more substituents selected from alkyl groups containing 1 to 4 carbon atoms alkoxy groups, containing 1 to 4 carbon atoms alkylthio groups containing 1, to 4 carbon atoms halogen atoms, trifluoromethyl groups, nitro groups alkoxycarbonyl groups containing 1 to 4 carbon atoms in the alkoxy part, alkylcarbonyl groups containing 1 to 4 carbon atoms in the alkyl part, phenyl and cyano groups and n, represents 1 …

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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 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.
FiledMay 12, 1978
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108161 A
Classification (IPC)C07D307/32 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 12, 1978Patent grantedSep 1, 1981Term endedSep 1, 1998

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