Granted Patent
Utility
US 6,519,849 · App. 09/456,333
Method for the manufacture of a welded rotor of a fluid-flow machine
Inventor:
Wilhelm Endres
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Dec 8, 1999
Inventor
Wilhelm Endres
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.