Granted Patent
Utility
US 5,464,601 · App. 08/219,227
Process for preparing sulfides of phosphorus
Inventors:
Edward J. Griffith, Toan M. Ngo
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Mar 29, 1994
Inventors
Edward J. Griffith
Toan M. Ngo
Assignee (at issue)
Monsanto 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.