Granted Patent
Utility
US 5,154,573 · App. 07/758,579
Cooling system for centrifugal pump components
Inventor:
Frederic W. Buse
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Sep 12, 1991
Inventor
Frederic W. Buse
Assignee (at issue)
Ingersoll-Rand Company
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.