Granted Patent
Utility
US 4,475,161 · App. 06/352,991
YIQ Computer graphics system
Inventor:
Rodney Stock
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Feb 26, 1982
Inventor
Rodney Stock
Assignee (at issue)
Ampex 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.