Granted Patent
Utility
US 5,402,464 · App. 08/127,877
High-voltage electronic tube
Inventors:
Christian Schenk, Jens U. Madsen
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Sep 28, 1993
Inventors
Christian Schenk
Jens U. Madsen
Assignees (at issue)
Licentia Patent-Verwaltungs-GmbH
Andrex Radiation Products A/S
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.