Granted Patent
Utility
US 6,088,466 · App. 09/022,583
Audio voice coil adaptor ring
Inventor:
Lucio Proni
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Feb 12, 1998
Inventor
Lucio Proni
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.