Granted Patent
Utility
US 6,076,631 · App. 09/357,853
Bass reflex box of an automobile radio-sound system
Inventors:
Anton Hoenninger, Karl-Heinz Kuebler
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Jul 21, 1999
Inventors
Anton Hoenninger
Karl-Heinz Kuebler
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.