Granted Patent
Utility
US 4,794,307 · App. 07/102,584
Raster distortion correction for a deflection circuit
Inventor:
Peter E. Haferl
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Sep 29, 1987
Inventor
Peter E. Haferl
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.