Granted Patent
Utility
US 4,699,654 · App. 06/849,389
Melting furnace and method for melting metal
Inventors:
Wayne J. Maddever, Michael F. Riley, Ronald J. Selines
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Apr 8, 1988
Inventors
Wayne J. Maddever
Michael F. Riley
Ronald J. Selines
Assignee (at issue)
Union Carbide Corporation
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.