Granted Patent
Utility
US 6,322,320 · App. 09/450,728
Coolable casing of a gas turbine or the like
Inventors:
Christof Pfeiffer, Ulrich Wellenkamp, Christoph Nagler
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 30, 1999
Inventors
Christof Pfeiffer
Ulrich Wellenkamp
Christoph Nagler
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.