Granted Patent
Utility
US 6,746,208 · App. 10/273,844
Closed circuit blade-cooled turbine
Inventors:
Shinya Marushima, Shunichi Anzai, Masami Noda, Manabu Matsumoto, Nobuaki Kizuka, Tsuyoshi Takano
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Oct 21, 2002
Inventors
Shinya Marushima
Shunichi Anzai
Masami Noda
Manabu Matsumoto
Nobuaki Kizuka
Tsuyoshi Takano
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.