Granted Patent
Utility
US 4,516,050 · App. 06/397,962
Ion chamber for electron-bombardment ion sources
Inventor:
Carl J. Russo
Patented Case
View Patent ↗
Granted: May 7, 1985
Filed: Jul 14, 1982
Inventor
Carl J. Russo
Assignee (at issue)
Varian, Inc.
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.