Granted Patent
Utility
US 5,073,943 · App. 07/290,726
Automotive audio system having active controls in reduced power state
Inventor:
Max Chapman
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Dec 27, 1988
Inventor
Max Chapman
Assignee (at issue)
Ford Motor Company
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.