Granted Patent
Utility
US 6,409,981 · App. 09/329,412
Process for removing chlorine from gas stream
Inventors:
Edmund Hugh Stitt, Frederick Ernest Hancock
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Jun 10, 1999
Inventors
Edmund Hugh Stitt
Frederick Ernest Hancock
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.