Granted Patent
Utility
US 5,672,754 · App. 08/528,586
Process for the preparation of aminodiphenylamine compounds
Inventor:
Guido Jordine
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Sep 15, 1995
Inventor
Guido Jordine
Assignee (at issue)
Ciba-Geigy
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.