Granted Patent
Utility
US 5,166,370 · App. 07/684,407
Preparation of tetrahydrofuran using a supported transition metal
Inventors:
Frank J. Liotta, Jr., Haven S. Kesling, Jr., Rangasamy Pitchai
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Apr 12, 1991
Inventors
Frank J. Liotta, Jr.
Haven S. Kesling, Jr.
Rangasamy Pitchai
Assignee (at issue)
Arco Chemical Technology, L.P.
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.