Granted Patent
Utility
US 4,761,391 · App. 06/880,313
Delaminated clays and their use in hydrocarbon conversion processes
Inventor:
Mario L. Occelli
Patented Case
View Patent ↗
Granted: Aug 2, 1988
Filed: Jun 30, 1986
Inventor
Mario L. Occelli
Assignee (at issue)
Union Oil Company of California
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.