Granted Patent
Utility
US 5,323,231 · App. 08/078,014
Device and process for measuring an electron density distribution in a cathode ray tube with an image converter camera and a sequence controller
Inventors:
Joachim Hassler, Herbert Kilgus, Jurgen Reinknecht
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Jun 16, 1993
Inventors
Joachim Hassler
Herbert Kilgus
Jurgen Reinknecht
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.