Granted Patent
Utility
US 5,533,337 · App. 08/279,119
Feed water supply system of power plant
Inventor:
Yosio Kusayama
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Jul 22, 1994
Inventor
Yosio Kusayama
Assignee (at issue)
HITACHI, LTD.
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.