Granted Patent
Utility
US 5,618,965 · App. 08/610,315
Process for preparing aromatic nitriles
Inventor:
Martin Kudschus
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Mar 4, 1996
Inventor
Martin Kudschus
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.