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Expired Canadian patentCanada

Insecticidal 2-substituted-imino-3-alkyl-5- dialkoxyphosphinothioyloxy-6h-1,3,4-thiadiazine

CA 1105930 A · Owner: Chevron Research And Technology Company · Inventors: Edwards, Laroy H.

CIPO record

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Abstract From the Canadian patent

Thiadiazine compounds of the formula (I) (I), wherein R1 is alkyl, R2 is alkyl, cycloalkyl alkenyl or aryl, R3, is alkyl and R4 is alkyl are useful as insecticides. The, thiadiazine compounds are prepared by the addition of a dialkylhalothiophosphate to a tetrahydro-6H-1,3,4-thiadiazine-5-one.

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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 July 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 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.
FiledMarch 7, 1979
GrantedJuly 28, 1981
Term endedJuly 28, 1998
Patent numberCA 1105930 A
Classification (IPC)C07F9/65 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMarch 7, 1979Patent grantedJuly 28, 1981Term endedJuly 28, 1998

Sources & verification

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