Granted Patent
Utility
US 4,101,814 · App. 05/766,561
Side pincushion distortion correction circuit
Inventor:
Peter E. Haferl
Patented Case
View Patent ↗
Granted: Jul 18, 1978
Filed: Feb 7, 1977
Inventor
Peter E. Haferl
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.