Granted Patent
Utility
US 4,965,116 · App. 07/405,708
Method for separation of cobalt from nickel
Inventors:
Michael J. Miller, Richard A. Scheithauer
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Sep 11, 1989
Inventors
Michael J. Miller
Richard A. Scheithauer
Assignee (at issue)
GTE Products 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.