Granted Patent
Utility
US 4,323,815 · App. 06/125,823
Unitary beam guide/electron gun assembly for flat panel display devices
Inventor:
John P. Russell
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Feb 29, 1980
Inventor
John P. Russell
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.