Granted Patent
Utility
US 5,831,549 · App. 08/864,011
Telemetry system involving gigahertz transmission in a gas filled tubular waveguide
Inventor:
Marvin Gearhart
Patented Case
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Granted: Nov 3, 1998
Filed: May 27, 1997
Inventor
Marvin Gearhart
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.