Granted Patent
Utility
US 4,054,905 · App. 05/736,419
Automatic chrominance gain control system
Inventors:
Leopold A. Harwood, Erwin J. Wittmann
Patented Case
View Patent ↗
Granted: Oct 18, 1977
Filed: Oct 28, 1976
Inventors
Leopold A. Harwood
Erwin J. Wittmann
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.