Granted Patent
Utility
US 4,875,097 · App. 07/203,575
Perspective processing of a video signal
Inventor:
Richard A. Jackson
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: May 26, 1988
Inventor
Richard A. Jackson
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.