Granted Patent
Utility
US 4,333,820 · App. 06/228,519
Recovery of normally gaseous hydrocarbons from net excess hydrogen in a catalytic reforming process
Inventor:
Clifford A. Scheifele, Jr.
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Jan 26, 1981
Inventor
Clifford A. Scheifele, Jr.
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.