Granted Patent
Utility
US 4,363,804 · App. 06/333,201
Phosphonodithioylacetylamino phenyl pyrazoles
Inventor:
Llewellyn W. Fancher
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Dec 21, 1981
Inventor
Llewellyn W. Fancher
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.