Granted Patent
Utility
US 4,959,717 · App. 07/454,369
Method for masking picture reinforcement signals carried within the vertical interval
Inventor:
Yves C. Faroudja
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Dec 21, 1989
Inventor
Yves C. Faroudja
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.