Granted Patent
Utility
US 6,744,167 · App. 10/127,617
Rotor of a turbogenerator
Inventor:
Walter Sohner
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Apr 22, 2002
Inventor
Walter Sohner
Assignee (at issue)
ALSTOM (Switzerland) Ltd
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.