Granted Patent
Utility
US 4,498,927 · App. 06/474,738
Thermal reduction process for production of magnesium using aluminum skim as a reductant
Inventors:
Kenneth A. Bowman, Roy A. Christini, Marlyn D. Ballain
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Mar 10, 1983
Inventors
Kenneth A. Bowman
Roy A. Christini
Marlyn D. Ballain
Assignee (at issue)
Aluminum Company of America
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.