Granted Patent
Utility
US 4,478,600 · App. 05/750,118
Process for recovery of aluminum chloride
Inventors:
Ronald C. Schoener, Larry K. King, Lester L. Knapp, Nicholas Kloap
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Dec 13, 1976
Inventors
Ronald C. Schoener
Larry K. King
Lester L. Knapp
Nicholas Kloap
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.