Granted Patent
Utility
US 6,570,778 · App. 09/943,417
Adjustable speed drive for single-phase induction motors
Inventors:
Thomas A. Lipo, Miroslav Chomat
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Aug 30, 2001
Inventors
Thomas A. Lipo
Miroslav Chomat
Assignee (at issue)
Wisconsin Alumni Research Foundation
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.