Granted Patent
Utility
US 4,474,315 · App. 06/368,703
Molten metal transfer device
Inventors:
Ronald E. Gilbert, George S. Mordue
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Apr 15, 1982
Inventors
Ronald E. Gilbert
George S. Mordue
Assignee (at issue)
Kennecott Holdings 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.