Granted Patent
Utility
US 4,193,933 · App. 05/657,019
N-(2-fluoro-1,1,2,2-tetrachloroethylthio)-N-phenyl methane sulfonamides and their use in controlling pests
Inventors:
Peter F. Epstein, Willis C. McGuire
Patented Case
View Patent ↗
Granted: Mar 18, 1980
Filed: Feb 9, 1976
Inventors
Peter F. Epstein
Willis C. McGuire
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.