Granted Patent
Utility
US 4,475,057 · App. 06/335,117
CRT Article of manufacture and process therefore
Inventor:
Thomas J. Morris
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Dec 28, 1981
Inventor
Thomas J. Morris
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.