Granted Patent
Utility
US 6,270,311 · App. 09/518,644
Gas turbine split ring
Inventors:
Masamitsu Kuwabara, Yasuoki Tomita, Kiyoshi Suenaga, Masahito Kataoka, Yoshichika Sato, Koji Watanabe
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Mar 3, 2000
Inventors
Masamitsu Kuwabara
Yasuoki Tomita
Kiyoshi Suenaga
Masahito Kataoka
Yoshichika Sato
Koji Watanabe
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.