Granted Patent
Utility
US 5,696,357 · App. 08/519,365
Bass-reflex loudspeaker
Inventor:
Bradely M. Starobin
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Aug 25, 1995
Inventor
Bradely M. Starobin
Assignee (at issue)
Polk Investment Corporation
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.