Granted Patent
Utility
US 4,695,477 · App. 06/752,169
Method of producing a plane phosphor screen
Inventor:
Uwe Viohl
Patented Case
View Patent ↗
Granted: Sep 22, 1987
Filed: Jul 3, 1985
Inventor
Uwe Viohl
Assignee (at issue)
Standard Elektrik Lorenz AG
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.