Granted Patent
Utility
US 5,696,359 · App. 08/557,760
Portable loudspeaker/directional microphone peripheral
Inventors:
Larry A. Marcus, Christopher Todd Welsh
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Nov 13, 1995
Inventors
Larry A. Marcus
Christopher Todd Welsh
Assignee (at issue)
LUCENT TECHNOLOGIES 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.