Granted Patent
Utility
US 4,686,561 · App. 06/760,910
Vertical detail information restoration circuit
Inventors:
Leopold A. Harwood, Robert A. Wargo, Chandrakant B. Patel
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Jul 31, 1985
Inventors
Leopold A. Harwood
Robert A. Wargo
Chandrakant B. Patel
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.