IP Library Granted Patent US 5,602,435
Granted Patent Utility
US 5,602,435 · App. 08/291,829

Gas-cooled electrical machine

Inventors: Markus Iseli, Lothar Koppetsch, Hans Zimmermann
Patented Case View Patent ↗
Granted: Feb 11, 1997 Filed: Aug 17, 1994
Inventors
Markus Iseli
Lothar Koppetsch
Hans Zimmermann
Assignee (at issue)
ABB Management AG

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.

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Quick Facts
Patent No.
US 5,602,435
App. No.
08/291,829
Filed
1994-08-17
Granted
1997-02-11
Kind
A