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Expired Canadian patentCanada

1-cycloalkylcarbonyl-3-(3,5-dihalophenyl) imidazolidine-2,4-diones

CA 1087198 A · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Kato, Toshiro; Takayama, Chiyozo; Fujinami, Akira

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Abstract From the Canadian patent

1-CYCLOALKYLCARBONYL-3-(3,5-DIHALO-, PHENYL)IMIDAZOLIDINE-2,4-DIONES Abstract of the Disclosure, The invention relates to 1-cycloalkylcarbonyl-3-(3 5-dihalophenyl)imidazolidine-2,4-diones of the formula: wherein X represents a chlorine or bromine atom R1 represents, a C3-C6 cycloalkyl, tetramethylcyclopropyl 2,2-dimethyl-3-, isobutenylcyclopropyl or 2,2-dimethyl-3-dichlorovinylcyclopropyl group and R2 and R3, which may be the same or different each represent a hydrogen atom or a methyl group. These compounds show high fungicidal activities without any material toxicity to mammals and plants and can be produced by reacting the corresponding 1-unsubstituted compound with a …

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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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 22, 1977
GrantedOctober 7, 1980
Term endedOctober 7, 1997
Patent numberCA 1087198 A
Classification (IPC)C07D233/80 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedNov 22, 1977Patent grantedOct 7, 1980Term endedOct 7, 1997

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