Granted Patent
Utility
US 6,202,486 · App. 09/164,962
Analog liquid level sensor
Inventor:
John W. Kemp
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Oct 1, 1998
Inventor
John W. Kemp
Assignee (at issue)
Imaging & Sensing Technology 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.