Granted Patent
Utility
US 4,756,750 · App. 07/043,118
Process for the direct reduction of iron ore
Inventors:
Arthur Daniel Bixler, Tarun D. Vakil, Shoou-I Wang
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Apr 27, 1987
Inventors
Arthur Daniel Bixler
Tarun D. Vakil
Shoou-I Wang
Assignee (at issue)
Air Products and Chemicals, Inc.
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.