Granted Patent
Utility
US 6,567,529 · App. 10/036,007
Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array
Inventor:
Richard S. Roark
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Dec 28, 2001
Inventor
Richard S. Roark
Assignee (at issue)
MITEK HOLDINGS, 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.