Granted Patent
Utility
US 4,827,185 · App. 07/194,816
Color picture tube having internal conductive coatings
Inventors:
Norbert Thiel, Volker Gerstle, Rolf Zondler, Otto Lederle
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: May 17, 1988
Inventors
Norbert Thiel
Volker Gerstle
Rolf Zondler
Otto Lederle
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.