Granted Patent
Utility
US 4,620,909 · App. 06/547,475
Method for isotope replenishment in an exchange liquid used in a laser induced isotope enrichment process
Inventors:
Graham M. Keyser, David L. Mader, James A. O'Neill
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Oct 31, 1983
Inventors
Graham M. Keyser
David L. Mader
James A. O'Neill
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.