Granted Patent
Utility
US 5,533,381 · App. 08/258,198
Conversion of liquid volume, density, and viscosity to frequency signals
Inventor:
Joseph B. Seale
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Jun 10, 1994
Inventor
Joseph B. Seale
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.