Granted Patent
Utility
US 4,769,508 · App. 06/864,644
Alkali promoted manganese oxide compositions containing titanium
Inventors:
Robert G. Gastinger, Howard Paul Withers, Jr., John A. Sofranko
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: May 15, 1986
Inventors
Robert G. Gastinger
Howard Paul Withers, Jr.
John A. Sofranko
Assignee (at issue)
Atlantic Richfield Company
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.