Granted Patent
Utility
US 4,499,767 · App. 06/411,525
Capacitance-type material level indicator
Inventors:
George H. Fathauer, Charles F. Hood, Robin B. Runck
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Aug 25, 1982
Inventors
George H. Fathauer
Charles F. Hood
Robin B. Runck
Assignee (at issue)
Berwind Corporation
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.