Granted Patent
Utility
US 6,224,327 · App. 09/250,733
Steam-cooling type gas turbine
Inventors:
Sunao Aoki, Katsunori Tanaka, Kazuharu Hirokawa, Rintaro Chikami
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Feb 16, 1999
Inventors
Sunao Aoki
Katsunori Tanaka
Kazuharu Hirokawa
Rintaro Chikami
Assignee (at issue)
MITSUIBSHI HEAVY INDUSTRIES, 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.