Granted Patent
Utility
US 4,684,977 · App. 06/759,832
Luminance/chrominance separation circuitry
Inventors:
Robert A. Dischert, Joseph Robert Ader, Robert J. Topper
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Jul 29, 1985
Inventors
Robert A. Dischert
Joseph Robert Ader
Robert J. Topper
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.