Granted Patent
Utility
US 5,980,225 · App. 08/887,049
Rotary pump having a drive shaft releasably connected to the rotor
Inventor:
Manfred Sommer
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Jul 2, 1997
Inventor
Manfred Sommer
Assignee (at issue)
Sundstrand Fluid Handling 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.