Granted Patent
Utility
US 4,913,884 · App. 07/268,101
Uranium-preextraction in zirconium/hafnium separations process
Inventor:
Robert J. Feuling
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Nov 9, 1988
Inventor
Robert J. Feuling
Assignee (at issue)
Westinghouse Electric Company LLC
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.