Granted Patent
Utility
US 4,886,936 · App. 07/231,921
Process for the production of ortho-nitrobenzonitriles
Inventor:
Stephen E. Dinizo
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Aug 15, 1988
Inventor
Stephen E. Dinizo
Assignee (at issue)
ICI Americas, Inc.
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.