Granted Patent
Utility
US 4,331,971 · App. 06/208,211
Mode decision controller for selectively actuating a chrominance bandwith enhancement in a television receiver
Inventor:
Wayne E. Bretl
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: Nov 19, 1980
Inventor
Wayne E. Bretl
Assignee (at issue)
Zenith Radio 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.