Granted Patent
Utility
US 4,822,143 · App. 07/111,693
Picture-reproducing arrangement using a picture tube, and method of manufacturing same
Inventor:
Rolf Zondler
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Oct 21, 1987
Inventor
Rolf Zondler
Assignee (at issue)
Nokia Graetz
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.