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.