Granted Patent
Utility
US 6,056,508 · App. 09/111,778
Cooling system for the trailing edge region of a hollow gas turbine blade
Inventors:
Bruce V. Johnson, Pey-Shey Wu, Bernhard Weigand, Prith Harasgama
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Jul 8, 1998
Inventors
Bruce V. Johnson
Pey-Shey Wu
Bernhard Weigand
Prith Harasgama
Assignee (at issue)
ABB Alstom Power (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.