Granted Patent
Utility
US 4,514,663 · App. 06/489,800
Electron beam injection structure for flat panel display devices
Inventor:
Leon J. Vieland
Patented Case
View Patent ↗
Granted: Apr 30, 1985
Filed: Apr 29, 1983
Inventor
Leon J. Vieland
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.