Granted Patent
Utility
US 6,473,509 · App. 09/862,999
Audio system, in particular for motor vehicles
Inventors:
Rainer Albus, Norbert Niemczyk
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: May 23, 2001
Inventors
Rainer Albus
Norbert Niemczyk
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.