Granted Patent
Utility
US 6,692,235 · App. 09/918,119
Air cooled packaged multi-stage centrifugal compressor system
Inventors:
Robert M. Kolodziej, Edward S. Czechowski, Donald E. Miller, John Battershell, Michael Thompson, John C. Bartos, Frank Athearn, Robert Rajeski
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Jul 30, 2001
Inventors
Robert M. Kolodziej
Edward S. Czechowski
Donald E. Miller
John Battershell
Michael Thompson
John C. Bartos
Frank Athearn
Robert Rajeski
Assignee (at issue)
Cooper Cameron 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.