Granted Patent
Utility
US 4,982,606 · App. 07/319,380
Fluid level sensor and controller
Inventors:
Joseph R. Adamski, Donald A. Coates
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Mar 6, 1989
Inventors
Joseph R. Adamski
Donald A. Coates
Assignee (at issue)
Raytheon 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.