Granted Patent
Utility
US 4,424,490 · App. 06/287,911
High voltage probe for gas insulated high voltage switching insulation
Inventors:
Manfred Mamet, Dietrich Fischer, Gerhard Tuemmler, Detlev Niederhuefner
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Jul 29, 1981
Inventors
Manfred Mamet
Dietrich Fischer
Gerhard Tuemmler
Detlev Niederhuefner
Assignee (at issue)
Siemens Aktiengesellschaft
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.