Granted Patent
Utility
US 4,906,897 · App. 05/124,388
Image intensifier tube
Inventors:
Barry M. Singer, Amos Picker
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Mar 15, 1971
Inventors
Barry M. Singer
Amos Picker
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.