Granted Patent
Utility
US 4,263,287 · App. 06/090,782
Fenvalerate-phosmet insecticidal composition
Inventor:
Stephan Dennis
Patented Case
View Patent ↗
Granted: Apr 21, 1981
Filed: Nov 2, 1979
Inventor
Stephan Dennis
Assignee (at issue)
Stauffer Chemical Company
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.