Granted Patent
Utility
US 6,711,205 · App. 09/160,538
Tone detector for use in a modem
Inventor:
Jim Beaney
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Sep 25, 1998
Inventor
Jim Beaney
Assignee (at issue)
Intel 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.