Granted Patent
Utility
US 5,457,233 · App. 08/345,274
Process for the preparation of amines
Inventor:
Philippe Ouziel
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Nov 28, 1994
Inventor
Philippe Ouziel
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.