Granted Patent
Utility
US 4,498,028 · App. 06/306,449
Ultra-short LoBi electron gun for very short cathode ray tubes
Inventor:
Richard M. Gorski
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Sep 28, 1981
Inventor
Richard M. Gorski
Assignee (at issue)
Zenith Electronics LLC
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.