Granted Patent
Utility
US 4,723,158 · App. 06/863,223
Method and apparatus for performing scan line diagnostic testing in a video monitor during a last-line overscan of a normal display raster
Inventor:
Michael G. White
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: May 14, 1986
Inventor
Michael G. White
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.