Granted Patent
Utility
US 6,769,867 · App. 10/237,018
Joint structure of coolant passage, tube seal, and gas turbine
Inventors:
Kazuo Uematsu, Takeaki Ohya
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Sep 9, 2002
Inventors
Kazuo Uematsu
Takeaki Ohya
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.