Granted Patent
Utility
US 4,338,624 · App. 06/222,476
On screen color display
Inventors:
Alain H. d'Hautecourt, George J. Tzakis
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Jan 5, 1981
Inventors
Alain H. d'Hautecourt
George J. Tzakis
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.