Granted Patent
Utility
US 5,832,077 · App. 08/783,812
Microphone/loudspeaker having a speakerphone mode and a microphone/loudspeaker mode
Inventor:
Gregory Ciurpita
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Jan 16, 1997
Inventor
Gregory Ciurpita
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.