Granted Patent
Utility
US 5,471,101 · App. 08/156,276
High efficiency electrical machine with minimized material content
Inventor:
Bruce Hein
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Nov 22, 1993
Inventor
Bruce Hein
Assignee (at issue)
MagneTek Century Electric, 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.