Granted Patent
Utility
US 4,549,245 · App. 06/652,853
Capacitance-type material level probe and method of manufacture
Inventor:
Phillip P. Fleckenstein
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: Sep 21, 1984
Inventor
Phillip P. Fleckenstein
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.