Granted Patent
Utility
US 6,409,355 · App. 09/242,164
Combination instrument
Inventors:
Ernst-Ulrich Simon, Hans Kolibius, Stephan Zech
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Jun 1, 1999
Inventors
Ernst-Ulrich Simon
Hans Kolibius
Stephan Zech
Assignee (at issue)
Mannesmann VDO 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.