Granted Patent
Utility
US 5,841,621 · App. 08/659,066
Sensorless measurement of electromagnetic actuator displacement device
Inventors:
Arthur L. Dean, Michael Steven Giusto
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Jun 4, 1996
Inventors
Arthur L. Dean
Michael Steven Giusto
Assignee (at issue)
FMC 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.