Granted Patent
Utility
US 6,217,280 · App. 09/039,553
Turbine inter-disk cavity cooling air compressor
Inventor:
David A. Little
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: Mar 16, 1998
Inventor
David A. Little
Assignee (at issue)
Siemens Westinghouse Power Corporation
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.