Granted Patent
Utility
US 6,568,503 · App. 09/952,658
Loudspeaker with improved mounting structure for the surround
Inventor:
Lucio Proni
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Sep 13, 2001
Inventor
Lucio Proni
Assignee (at issue)
JL Audio, Inc.
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.