Granted Patent
Utility
US 6,267,583 · App. 09/289,606
Combustor
Inventors:
Shigemi Mandai, Koichi Nishida, Masataka Ota, Eiji Akita
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Apr 12, 1999
Inventors
Shigemi Mandai
Koichi Nishida
Masataka Ota
Eiji Akita
Assignee (at issue)
MISTUBISHI 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.