Granted Patent
Utility
US 6,223,702 · App. 09/295,573
Internal combustion engine
Inventors:
Karl-Jorg Achenbach, Ulrich Bertsch, Jochen Betsch, Thomas Hardt, Hubert Schnupke, Gunther Zoll
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Apr 22, 1999
Inventors
Karl-Jorg Achenbach
Ulrich Bertsch
Jochen Betsch
Thomas Hardt
Hubert Schnupke
Gunther Zoll
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.