Granted Patent
Utility
US 5,366,351 · App. 08/099,671
Pump with failure responsive discharge valve
Inventor:
Paul A. Nolte
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Jul 29, 1993
Inventor
Paul A. Nolte
Assignee (at issue)
Ingersoll-Dresser Pump 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.