Granted Patent
Utility
US 6,164,382 · App. 09/297,452
Pyrotechnical device and process for extinguishing fires
Inventors:
Volker Schütte, Ernst-Werner Wagner
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Apr 30, 1999
Inventors
Volker Schütte
Ernst-Werner Wagner
Assignee (at issue)
Wagner Alarm Sicherungssysteme GmbH
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.