Granted Patent
Utility
US 6,422,298 · App. 09/643,530
Air preheater rotor construction
Inventors:
Robin B. Rhodes, Jon R. Cowburn, Kurt M. Fierle
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Aug 22, 2000
Inventors
Robin B. Rhodes
Jon R. Cowburn
Kurt M. Fierle
Assignee (at issue)
Alstom Power N.V.
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.