Granted Patent
Utility
US 5,498,487 · App. 08/288,850
Oxygen sensor for monitoring gas mixtures containing hydrocarbons
Inventors:
Roswell J. Ruka, Richard A. Basel
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: Aug 11, 1994
Inventors
Roswell J. Ruka
Richard A. Basel
Assignee (at issue)
Westinghouse Electric 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.