Granted Patent
Utility
US 5,407,462 · App. 08/240,269
Mass flow gravity feed method for charging metal-melting furnaces and apparatus therefor
Inventor:
Larry D. Areaux
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: May 10, 1994
Inventor
Larry D. Areaux
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.