Granted Patent
Utility
US 4,614,735 · App. 06/685,581
S-propargyl trithiophosphonate insecticides for use in soil
Inventor:
Alexandra B. Shortt
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Dec 24, 1984
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.