Granted Patent
Utility
US 6,074,539 · App. 09/199,017
Electrochemical sensor for the detection of hydrogen cyanide
Inventors:
Debra J. Dorisio Deininger, Towner B. Scheffler
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Nov 23, 1998
Inventors
Debra J. Dorisio Deininger
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.