Granted Patent
Utility
US 5,494,416 · App. 08/346,848
Magnetically driven positive displacement pump and thrust bearing assembly
Inventor:
Paul M. Gergets
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Nov 30, 1994
Inventor
Paul M. Gergets
Assignee (at issue)
Tuthill 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.