Granted Patent
Utility
US 4,092,651 · App. 05/715,344
Device and method for exposing phosphor dots in a color television picture tube
Inventor:
Hans Rothfuss
Patented Case
View Patent ↗
Granted: May 30, 1978
Filed: Aug 17, 1976
Inventor
Hans Rothfuss
Assignee (at issue)
International Standard Electric 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.