Granted Patent
Utility
US 4,454,825 · App. 06/442,557
Mill recirculation system
Inventor:
Richard L. Musto
Patented Case
View Patent ↗
Granted: Jun 19, 1984
Filed: Nov 18, 1982
Inventor
Richard L. Musto
Assignee (at issue)
Combustion Engineering, 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.