Granted Patent
Utility
US 5,368,073 · App. 08/132,845
Hydropneumatic pressure vessel having an improved diaphragm assembly
Inventor:
James C. Murphy
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Oct 7, 1993
Inventor
James C. Murphy
Assignee (at issue)
ESSEF 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.