Granted Patent
Utility
US 5,630,991 · App. 08/291,212
Limestone-based wet flue gas desulfurization process
Inventors:
Eli Gal, Michael L. Mengel
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Aug 16, 1994
Inventors
Eli Gal
Michael L. Mengel
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.