Granted Patent
Utility
US 6,038,328 · App. 08/889,168
Minimization of acoustic echo effects in a microphone boot
Inventor:
Roger Hsu
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Jul 7, 1997
Inventor
Roger Hsu
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.