Granted Patent
Utility
US 4,867,951 · App. 07/176,131
Separation of actinides from lanthanides
Inventors:
Barbara F. Smith, Gordon D. Jarvinen, Robert R. Ryan
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Mar 31, 1988
Inventors
Barbara F. Smith
Gordon D. Jarvinen
Robert R. Ryan
Assignee (at issue)
United States Department of Energy
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.