Granted Patent
Utility
US 5,993,155 · App. 09/034,231
Cooled gas-turbine blade
Inventors:
Wilhelm Endres, Hans Wettstein
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Mar 4, 1998
Inventors
Wilhelm Endres
Hans Wettstein
Assignee (at issue)
Asea Brown Boveri, S.A.
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.