Granted Patent
Utility
US 4,769,692 · App. 07/032,142
Method and apparatus for calibrating the phase of a video signal
Inventor:
Grant T. McFetridge
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Mar 27, 1987
Inventor
Grant T. McFetridge
Assignee (at issue)
GRASS VALLEY LIMITED
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.