Granted Patent
Utility
US 5,404,164 · App. 08/073,313
Process and device for convergence measurement in a color picture tube
Inventors:
Joachim Hassler, Zeljko Sernhorst, Gunter Wessels
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: Jun 8, 1993
Inventors
Joachim Hassler
Zeljko Sernhorst
Gunter Wessels
Assignee (at issue)
Nokia Technology
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.