Granted Patent
Utility
US 6,389,799 · App. 09/403,417
Gas turbine Installation
Inventors:
Shigeo Hatamiya, Masahiko Yamagishi, Osamu Yokomizo, Yoshiki Noguchi, Moriaki Tsukamoto
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Jan 5, 2000
Inventors
Shigeo Hatamiya
Masahiko Yamagishi
Osamu Yokomizo
Yoshiki Noguchi
Moriaki Tsukamoto
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.