Granted Patent
Utility
US 5,554,000 · App. 08/302,261
Blade profile for axial flow compressor
Inventors:
Yasuhiro Katoh, Yoshihiro Tsuda, Mitsuaki Yanagida, Hajime Toriya, Tetsuo Sasada
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Sep 8, 1994
Inventors
Yasuhiro Katoh
Yoshihiro Tsuda
Mitsuaki Yanagida
Hajime Toriya
Tetsuo Sasada
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.