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Expired Canadian patentCanada

Imidazolidine derivatives useful as insecticides and acaricides

CA 1100514 A · Owner: Celamerck G.M.B.H. & Co. Kg · Inventors: Thomas, Klaus; Ost, Walter; Curtze, Jurgen

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Abstract From the Canadian patent

b, \, ABSTRACT OF THE DISCLOSURE, The invention relates to novel pesticidal compositions and to certain novel compounds employed therein as active ingredient. These novel compounds have the formula:, wherein R1 and R2 which may be the same or different, each represents a hydrogen or halogen atom or a nitro or lower alkyl or alkoxy group in the 3-, 4- or 5-position. The compositions and compounds according to the invention show good insecticidal and acaricidal activity. Processes for the production of the novel compounds are described and examples of certain of the novel compounds are given. Pesticidal compositions according to the present invention are described and exemplified.

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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 5, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 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 21, 1973
GrantedMay 5, 1981
Term endedMay 5, 1998
Patent numberCA 1100514 A
Classification (IPC)C07D239/04 +1 more

Timeline

Timeline From CIPO dates

197419771980198319861989199219951998Application filedDec 21, 1973Patent grantedMay 5, 1981Term endedMay 5, 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.