Granted Patent
Utility
US 4,323,813 · App. 06/114,514
Spring-loaded resistive lens structure for electron gun
Inventors:
Leon J. Vieland, Vincent M. Cannuli
Patented Case
View Patent ↗
Granted: Apr 6, 1982
Filed: Jan 23, 1980
Inventors
Leon J. Vieland
Vincent M. Cannuli
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.