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Expired Canadian patentCanada

Oil-in-water insecticidal and acaricidal emulsion

CA 1112563 A · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Fuyama, Hiroshi; Tsuji, Kozo

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An oil-in-water insecticidal and acaricidal emulsion comprising 1 to 50% by weight of as a hydrophobic insecticidally and acaricidally active liquid ingredient at least one ester of the formula (I):, (I), where X is a hydrogen atom a chlorine atom, a bromine atom or a, florine atom; and Y is a group of the formula: or, where R1 is a methyl group or a group of the formula: where R5 is a chlorine atom, a bromine atom a fluorine atom or, a methyl group; R2 is a hydrogen atom or a methyl group; R3 is a chlorine atom, a bromine atom, a fluorine atom or a tert-butyl group; and R4 is an isopropyl group or a cyclopropyl group; 2 to 10% by weight of polyvinyl alcohol or gum arabic; and 0.1 to 20% by …

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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 November 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.
FiledJune 19, 1979
GrantedNovember 17, 1981
Term endedNovember 17, 1998
Patent numberCA 1112563 A
Classification (IPC)A01N25/00 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJune 19, 1979Patent grantedNov 17, 1981Term endedNov 17, 1998

Sources & verification

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