(O-(N-Methylcarbamoyl)-oxime)-(N,N,N-trialkylurea)-N,N-sulfide derivatives, processes for producing them, compositions containing these derivatives as active ingredients, and the use thereof for controlling insect pests

Granted: Feb 10, 1981 Filed: Aug 30, 1979

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.