Granted Patent
Utility
US 6,693,523 · App. 09/648,177
Instrument cluster for motor vehicles with variable-color display
Inventors:
Heinz Abel, Heinrich Noll
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Aug 25, 2000
Inventors
Heinz Abel
Heinrich Noll
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.