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Expired Canadian patentCanada

Pesticidal 1-(alkyl phenoxyaryl)-3-benzoyl ureas and process for preparation

CA 1205483 A · Owner: Union Carbide Corporation · Inventors: Cain, Paul A.; Chou, David T.

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Abstract From the Canadian patent

Novel Pesticidal 1-(Alkylphenoxyphenyl)-3-benzoyl Ureas and Process For Preparation, Abstract of the Disclosure Novel 1-(alkylphenoxyphenyl)-3-benzoyl ureas and a process for their preparation are provided. The novel ureas are useful as the active toxicant in pesticidal composition.

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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 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1983
GrantedJune 3, 1986
Term endedJune 3, 2003
Patent numberCA 1205483 A
Classification (IPC)C07C205/38 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJune 10, 1983Patent grantedJune 3, 1986Term endedJune 3, 2003

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