Granted Patent
Utility
US 4,739,403 · App. 07/045,709
Digital horizontal processor
Inventor:
William J. Mark
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: May 1, 1987
Inventor
William J. Mark
Assignee (at issue)
Zenith Electronics LLC
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.