Granted Patent
Utility
US 4,831,295 · App. 07/122,037
Arrangement for reducing shaft voltages in dynamoelectric machines
Inventor:
Zlatimir Posedel
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Nov 17, 1987
Inventor
Zlatimir Posedel
Assignee (at issue)
Asea Brown Boveri, S.A.
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.