Granted Patent
Utility
US 6,733,231 · App. 10/117,079
Vapor tube structure of gas turbine
Inventor:
Tadateru Tanioka
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Apr 8, 2002
Inventor
Tadateru Tanioka
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.