Granted Patent
Utility
US 6,739,399 · App. 10/338,289
Inerting method and apparatus for preventing and extinguishing fires in enclosed spaces
Inventors:
Ernst-Werner Wagner, Volker Schütte
Patented Case
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Granted: May 25, 2004
Filed: Jan 8, 2003
Inventors
Ernst-Werner Wagner
Volker Schütte
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.