Granted Patent
Utility
US 6,157,109 · App. 09/021,204
Dynamoelectric machine with ferromagnetic end winding ring
Inventors:
Rich Schiferl, Boris A. Shoykhet
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Feb 10, 1998
Inventors
Rich Schiferl
Boris A. Shoykhet
Assignee (at issue)
Reliance Electric Technologies, 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.