Granted Patent
Utility
US 6,401,533 · App. 09/341,750
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Inventors:
Lothar Gier, Werner Wallrafen
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 27, 1999
Inventors
Lothar Gier
Werner Wallrafen
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.