Granted Patent
Utility
US 4,281,971 · App. 06/062,599
Inlet inducer-impeller for piston pump
Inventor:
Herbert H. Kouns
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Jul 31, 1979
Inventor
Herbert H. Kouns
Assignee (at issue)
Abex 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.