Granted Patent
Utility
US 6,068,469 · App. 09/186,799
Combustion apparatus
Inventors:
Tadashi Gengo, Kouichi Sakamoto, Keishi Suga
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Nov 5, 1998
Inventors
Tadashi Gengo
Kouichi Sakamoto
Keishi Suga
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.