Granted Patent
Utility
US 4,390,815 · App. 06/244,664
Apparatus for influencing electron beam movement
Inventors:
Charles Key, Edward W. Christensen, II
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Mar 17, 1981
Inventors
Charles Key
Edward W. Christensen, II
Assignee (at issue)
RCA 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.