Granted Patent
Utility
US 4,654,440 · App. 06/173,781
Catalysts for selective preparation of amines or nitriles from alkanols
Inventors:
Roger J. Card, Joseph Lawrence Schmitt, Jr.
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Jul 30, 1980
Inventors
Roger J. Card
Joseph Lawrence Schmitt, Jr.
Assignee (at issue)
American Cyanamid Company
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.