Granted Patent
Utility
US 5,267,475 · App. 08/035,547
Vertical sweep liquid level sensor
Inventor:
Robert D. Gaston
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Mar 23, 1993
Inventor
Robert D. Gaston
Assignee (at issue)
Ford Motor 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.