Granted Patent
Utility
US 4,604,548 · App. 06/154,237
Electron gun with afterglow eliminator
Inventors:
Karl G. Hernqvist, Roger C. Alig
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: May 29, 1980
Inventors
Karl G. Hernqvist
Roger C. Alig
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.