Granted Patent
Utility
US 3,932,867 · App. 05/251,461
Television channel indicator
Inventor:
Eugene C. Walding
Patented Case
View Patent ↗
Granted: Jan 13, 1976
Filed: May 8, 1972
Inventor
Eugene C. Walding
Assignee (at issue)
Oak Electro/Netics 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.