Granted Patent
Utility
US 5,961,942 · App. 08/985,668
Effluent gas treatment
Inventors:
John A. Turner, Ian Charles Jeffery
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Dec 5, 1997
Inventors
John A. Turner
Ian Charles Jeffery
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.