Granted Patent
Utility
US 4,933,152 · App. 07/311,261
Continuous process for purifying molybdenum
Inventors:
Judy L. Scheftic, James N. Christini
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Feb 16, 1989
Inventors
Judy L. Scheftic
James N. Christini
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.