Granted Patent
Utility
US 4,645,652 · App. 06/802,926
Method for scrubbing sulfur oxides and nitrogen oxides in a flue gas duct
Inventor:
Shiro Kimura
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Nov 29, 1985
Inventor
Shiro Kimura
Assignee (at issue)
General Electric Company
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.