Granted Patent
Utility
US 4,654,430 · App. 06/866,847
S-propargyl trithiophosphonate insecticides
Inventor:
Alexandra B. Shortt
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: May 27, 1986
Inventor
Alexandra B. Shortt
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.