Granted Patent
Utility
US 4,268,521 · App. 05/753,039
Synergistic insecticidal combinations comprising methomyl and 2-dihalovinyl-3,3-dimethylcyclopropanecarboxylates
Inventor:
James J. Knabke
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Dec 22, 1976
Inventor
James J. Knabke
Assignee (at issue)
FMC CORPORATION
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.