Granted Patent
Utility
US 6,012,909 · App. 08/937,082
Centrifugal pump with an axial-field integral motor cooled by working fluid
Inventors:
Donald P. Sloteman, Frederic W. Buse, Mark S. Piercey
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Sep 24, 1997
Inventors
Donald P. Sloteman
Frederic W. Buse
Mark S. Piercey
Assignees (at issue)
Ingersoll-Dresser Pump Company
Kaman Electromagnetics Corp.
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.