Granted Patent
Utility
US 6,480,522 · App. 09/723,338
Method of polling second stations for functional quality and maintenance data in a discrete multitone spread spectrum communications system
Inventors:
Elliott Hoole, Mary Jesse, Robert G. Mechaley, Jr., David James Ryan, David Sheldon Stephenson
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Nov 28, 2000
Inventors
Elliott Hoole
Mary Jesse
Robert G. Mechaley, Jr.
David James Ryan
David Sheldon Stephenson
Assignee (at issue)
AT&T WIRELESS SERVICES, 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.