Granted Patent
Utility
US 4,803,733 · App. 06/942,879
Loudspeaker diaphragm mounting system and method
Inventors:
Robert W. Carver, James J. Croft, III
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Dec 16, 1986
Inventors
Robert W. Carver
James J. Croft, III
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.