Granted Patent
Utility
US 4,659,957 · App. 06/682,419
Method of manufacturing and adjusting a color picture tube
Inventor:
Eberhard Nill
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Dec 17, 1984
Inventor
Eberhard Nill
Assignee (at issue)
ITT Industries
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.