Granted Patent
Utility
US 4,234,828 · App. 06/077,434
Self-oscillating sawtooth current deflection generator
Inventor:
Lloyd E. Matthews
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Sep 20, 1979
Inventor
Lloyd E. Matthews
Assignee (at issue)
Zenith Radio 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.