Granted Patent
Utility
US 4,943,847 · App. 06/909,508
Extended definition television
Inventor:
Ron D. Katznelson
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Sep 19, 1986
Inventor
Ron D. Katznelson
Assignees (at issue)
M/A-COM Government Systems, Inc.
Cable/Home Communication 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.