Granted Patent
Utility
US 5,906,718 · App. 08/910,421
Electrochemical gas sensor for the detection of nitrogen dioxide
Inventors:
Glen W. Hance, Joseph D. Jolson, Towner B. Scheffler
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Aug 13, 1997
Inventors
Glen W. Hance
Joseph D. Jolson
Towner B. Scheffler
Assignee (at issue)
Mine Safety Appliances Company, LLC
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.