Granted Patent
Utility
US 4,870,557 · App. 07/249,483
Simplified quasi-harmonic neutralized high power inverters
Inventor:
Eric J. Stacey
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Sep 23, 1988
Inventor
Eric J. Stacey
Assignee (at issue)
Westinghouse Electric Company LLC
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.