Granted Patent
Utility
US 4,606,895 · App. 06/549,932
Ion exchange loading
Inventor:
James M. Paul
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Nov 9, 1983
Inventor
James M. Paul
Assignee (at issue)
Mobil Oil 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.