Granted Patent
Utility
US 6,269,643 · App. 09/446,608
Turbocharger system for internal combustion engines
Inventors:
Erwin Schmidt, Siegfried Sumser
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: May 11, 2000
Inventors
Erwin Schmidt
Siegfried Sumser
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.