Granted Patent
Utility
US 6,012,901 · App. 09/152,519
Compressor impeller fastening for high speed turboengines
Inventors:
Josef Battig, Alfred Muller
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Sep 14, 1998
Inventors
Josef Battig
Alfred Muller
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.