Granted Patent
Utility
US 5,105,662 · App. 07/681,719
Liquid level measurement system
Inventors:
Norman F. Marsh, Randall J. Regentin
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Apr 8, 1991
Inventors
Norman F. Marsh
Randall J. Regentin
Assignee (at issue)
Bindicator Company
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.