Granted Patent
Utility
US 5,942,023 · App. 08/946,583
Process for recovering metals from electric arc furnace (EAF) dust
Inventors:
John A. Bitler, John P. Baranski, Harold R. Larson
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Oct 7, 1997
Inventors
John A. Bitler
John P. Baranski
Harold R. Larson
Assignee (at issue)
Exide 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.