Granted Patent
Utility
US 4,724,368 · App. 06/812,534
Multiple phase electronically commutated torque motor
Inventor:
Harold E. Andrews
Patented Case
View Patent ↗
Granted: Feb 9, 1988
Filed: Dec 23, 1985
Inventor
Harold E. Andrews
Assignee (at issue)
Huges Aircraft 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.