Granted Patent
Utility
US 4,497,704 · App. 06/574,231
Hydrocarbon conversion process
Inventors:
Mark J. O'Hara, Russell W. Johnson
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Jan 26, 1984
Inventors
Mark J. O'Hara
Russell W. Johnson
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.