Granted Patent
Utility
US 4,471,144 · App. 06/449,044
Theta-alumina as a hydrothermally stable support in hydrogenation
Inventor:
Blaise J. Arena
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Dec 13, 1982
Inventor
Blaise J. Arena
Assignee (at issue)
UOP LLC
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.