Granted Patent
Utility
US 5,139,982 · App. 07/725,857
Supported metal oxide catalysts for the simultaneous removal of NO.sub.x and SO.sub.x from gas streams
Inventors:
Raul Eduardo Ayala, Josephine Sykes
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Jul 2, 1991
Inventors
Raul Eduardo Ayala
Josephine Sykes
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.