Granted Patent
Utility
US 4,468,847 · App. 06/413,515
Method of segregating metallic components
Inventors:
Kenneth A. Bowman, Chester L. Zuber
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Aug 31, 1982
Inventors
Kenneth A. Bowman
Chester L. Zuber
Assignee (at issue)
Aluminum Company of America
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.