Granted Patent
Utility
US 4,668,898 · App. 06/853,889
Electronically commutated motor
Inventors:
Harold B. Harms, Peter B. Lytle
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Apr 21, 1986
Inventors
Harold B. Harms
Peter B. Lytle
Assignee (at issue)
General Electric 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.