Granted Patent
Utility
US 6,449,288 · App. 09/251,723
Bi-level framing structure for improved efficiency DSL over noisy lines
Inventors:
Sriraman Chari, Anthony J. P. O'Toole
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Feb 17, 1999
Inventors
Sriraman Chari
Anthony J. P. O'Toole
Assignee (at issue)
Centillium Communications, 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.