Granted Patent
Utility
US 6,568,908 · App. 10/028,677
Steam turbine
Inventors:
Kiyoshi Namura, Eiji Saito, Yoshiaki Yamazaki, Masakazu Takasumi, Takeshi Onoda, Shigemichi Inoue
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Dec 31, 2001
Inventors
Kiyoshi Namura
Eiji Saito
Yoshiaki Yamazaki
Masakazu Takasumi
Takeshi Onoda
Shigemichi Inoue
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.