Granted Patent
Utility
US 5,012,167 · App. 07/488,478
Sinusoidal signal decoder for 12-step motor commutation
Inventor:
Howard F. Hendricks
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Mar 30, 1990
Inventor
Howard F. Hendricks
Assignee (at issue)
Penn Engineering & Manufacturing Corp.
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.