Granted Patent
Utility
US 4,609,913 · App. 06/704,346
Fluid level sensor
Inventors:
Thomas P. Arbogast, David H. Eilola
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Feb 22, 1985
Inventors
Thomas P. Arbogast
David H. Eilola
Assignee (at issue)
Wickes Manufacturing Co.
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.