Granted Patent
Utility
US 4,861,936 · App. 07/212,357
Boron-promoted reducible metal oxides and methods of their use
Inventors:
John A. Sofranko, Robert G. Gastinger, C. Andrew Jones
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Jun 27, 1988
Inventors
John A. Sofranko
Robert G. Gastinger
C. Andrew Jones
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.