Granted Patent
Utility
US 4,319,277 · App. 06/165,411
Institutional audio-visual system including a plural operating mode television receiver
Inventors:
John E. Nicholson, Paul C. Wilmarth
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Jul 2, 1980
Inventors
John E. Nicholson
Paul C. Wilmarth
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.