Granted Patent
Utility
US 5,211,744 · App. 07/771,041
Method and means for improving molten metal furnace charging efficiency
Inventors:
Larry D. Areaux, Robert J. Behnke, II
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Oct 2, 1991
Inventors
Larry D. Areaux
Robert J. Behnke, II
Assignee (at issue)
Premelt Systems, 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.