Granted Patent
Utility
US 4,872,907 · App. 07/213,365
Metal chip furnace charge apparatus and method
Inventor:
Larry D. Areaux
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Jun 30, 1988
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.