Granted Patent
Utility
US 5,839,401 · App. 08/874,492
Internal combustion engine
Inventors:
Gerhard Gruber, Werner Hofheinz, Rolf Klingmann, Johannes Schwiedessen
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Jun 12, 1997
Inventors
Gerhard Gruber
Werner Hofheinz
Rolf Klingmann
Johannes Schwiedessen
Assignee (at issue)
Daimler-Benz 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.