Granted Patent
Utility
US 4,164,547 · App. 05/794,553
Process for removing sulfur dioxide in a wet scrubber
Inventor:
Alexander P. Simko
Patented Case
View Patent ↗
Granted: Aug 14, 1979
Filed: May 6, 1977
Inventor
Alexander P. Simko
Assignee (at issue)
AMERICAN AIR FILTER COMPANY, INC.
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.