Granted Patent
Utility
US 5,874,625 · App. 08/743,263
Process to hydrogenate organic nitriles to primary amines
Inventor:
A. Fred Elsasser
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Nov 4, 1996
Inventor
A. Fred Elsasser
Assignee (at issue)
Henkel Limited
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.