Granted Patent
Utility
US 4,451,360 · App. 06/342,561
Device for removal of magnetic particles from a magnetic separator
Inventor:
Robert W. Salmi
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Jan 25, 1982
Inventor
Robert W. Salmi
Assignee (at issue)
United States Steel Corporation
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.