Granted Patent
Utility
US 5,879,639 · App. 08/761,859
Wet flue gas desulfurization system
Inventors:
Atsushi Tatani, Kiyoshi Okazoe, Yoshio Nakayama, Koichiro Iwashita
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Dec 9, 1996
Inventors
Atsushi Tatani
Kiyoshi Okazoe
Yoshio Nakayama
Koichiro Iwashita
Assignee (at issue)
MITSUBISHI KOGYO KABUSHIKI KAISHA
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.