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Expired Canadian patentCanada

N-benzoylanthranilate derivatives

CA 1107640 A · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Yamamoto, Shigeo; Kirino, Osamu; Kato, Toshiro

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Abstract From the Canadian patent

A fungicidal composition which comprises as an active ingredient an N-benzoylanthranilate compound of the formula wherein X is a hydrogen or 3-halogen atom or a 3-methoxy 4-methoxy, 2,4-dimethoxy, 3,4-dimethoxy 3-halo-4-methoxy, 3,4-methylene-, dioxy or 3,5-dimethoxy group and R is a hydrogen atom or a C1-C7 alkyl, C3-C6 cycloalkyl, C2-C4 alkenyl halo-C1-C3 alkyl, C1-C4 alkoxy C1-C4 alkyl or N,N-di-C1-C2 alkylamino C1-C4 alkyl group provided that when X is a hydrogen or 3-halogen atom or a 4-methoxy, 2,4-dimethoxy, 3,4-dimethoxy 3,4-methylene-dioxy or, 3,5-dimethoxy group R is other than a C2-C7 alkyl C3-C6 cyclo-, alkyl, C2-C4 alkenyl, halo-C1-C3 alkyl or N,N-di-C1-C2 alkylamino C1-C4 …

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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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 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.
FiledDecember 29, 1977
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107640 A
Classification (IPC)A01N37/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedDec 29, 1977Patent grantedAug 25, 1981Term endedAug 25, 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.