Granted Patent
Utility
US 6,328,532 · App. 09/450,729
Blade cooling
Inventor:
Hartmut Hähnle
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Nov 30, 1999
Inventor
Hartmut Hähnle
Assignee (at issue)
ALSTOM Holdings
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.