Granted Patent
Utility
US 4,968,504 · App. 07/424,027
Recovery of scandium and uranium
Inventor:
William J. Rourke
Patented Case
View Patent ↗
Granted: Nov 6, 1990
Filed: Oct 19, 1989
Inventor
William J. Rourke
Assignee (at issue)
GTE Laboratories Incorporated
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.