Granted Patent
Utility
US 6,656,440 · App. 09/914,778
Exhaust gas desulfurizing method and system therefor
Inventors:
Toru Takashina, Naohiko Ukawa, Kenji Inoue
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Sep 5, 2001
Inventors
Toru Takashina
Naohiko Ukawa
Kenji Inoue
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.