Granted Patent
Utility
US 6,464,460 · App. 09/725,722
Turbine blade with actively cooled shroud-band element
Inventors:
Ibrahim El-Nashar, Beat Von Arx, Bernhard Weigand, Hartmut Haehnle, Rudolf Kellerer
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Nov 30, 2000
Inventors
Ibrahim El-Nashar
Beat Von Arx
Bernhard Weigand
Hartmut Haehnle
Rudolf Kellerer
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.