Granted Patent
Utility
US 5,669,346 · App. 08/616,671
Internal combustion engine
Inventors:
Johannes Leweux, Hubert Schnupke, Albert Pietsch
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Mar 15, 1996
Inventors
Johannes Leweux
Hubert Schnupke
Albert Pietsch
Assignee (at issue)
MERCEDES-BENZ GROUP 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.