Granted Patent
Utility
US 4,489,257 · App. 06/541,846
Driving and braking system for electric motors
Inventor:
Carl E. Lindow
Patented Case
View Patent ↗
Granted: Dec 18, 1984
Filed: Oct 14, 1983
Inventor
Carl E. Lindow
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.