Granted Patent
Utility
US 4,678,778 · App. 06/898,544
Trithiophosphonate insecticides
Inventors:
Alexandra B. Shortt, William G. Haag
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Aug 21, 1986
Inventors
Alexandra B. Shortt
William G. Haag
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.