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Expired Canadian patentCanada

Aroylaminomethylpyridines and their use to combat fungi

CA 1284506 C · Owner: Kay, Ian T. · Inventors: Kay, Ian T.

CIPO record

Overview

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Abstract From the Canadian patent

Compounds of formula :, and stereoisomers thereof wherein R1 is unsubstituted or substituted aryl or heteroaryl; R2 is H, alkyl, alkenyl or alkynyl X is, O, WH, or S; R3 being alkyl, alkenyl alkynyl or COR4, where R4 has an R3 value when X is O, R3 being -CO-, alkyl when X is NH; and R3 being alkyl alkenyl or, CSNR5R6 where R5 and R6, which may be the same or different, are H, alkyl, alkenyl or, together with the adjacent N atom, constitute a ring when X is S;, or XR3 together represent -CN; and salts and metal complexes thereof, have fungicidal and plant growth regulating activity.

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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 May 28, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 7, 1986
GrantedMay 28, 1991
Term endedMay 28, 2008
Patent numberCA 1284506 C
Classification (IPC)C07D213/40 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedFeb 7, 1986Patent grantedMay 28, 1991Term endedMay 28, 2008

Sources & verification

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