Granted Patent
Utility
US 5,821,649 · App. 08/516,975
Electrostatic shielding system for reduction of bearing currents in electric motors
Inventor:
Phillip Gerard Langhorst
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Aug 18, 1995
Inventor
Phillip Gerard Langhorst
Assignee (at issue)
Magnetek, Inc.
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.