Granted Patent
Utility
US 5,680,468 · App. 08/345,667
Methods of and systems for speaker equalization in automotive vehicles having convertible tops
Inventors:
James E. Van Hout, Jack G. Mather, David J. Madaj
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Feb 21, 1995
Inventors
James E. Van Hout
Jack G. Mather
David J. Madaj
Assignee (at issue)
Chrysler Group LLC
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.