Granted Patent
Utility
US 6,659,082 · App. 09/601,742
Method for operating a four-stroke internal combustion engine
Inventors:
Igor Gruden, Rolf-Guenther Nieberding, Guido Vent
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Sep 18, 2000
Inventors
Igor Gruden
Rolf-Guenther Nieberding
Guido Vent
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.