Granted Patent
Utility
US 6,669,441 · App. 09/878,027
Exhaust-gas turbine
Inventors:
Karl-Heinz Bertnik, Volker Doring, Hans-Dieter Hensel, Peter Schick
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Jun 8, 2001
Inventors
Karl-Heinz Bertnik
Volker Doring
Hans-Dieter Hensel
Peter Schick
Assignee (at issue)
Daimlerchrysler AG
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.