Granted Patent
Utility
US 5,920,571 · App. 08/797,372
Frequency channel and time slot assignments in broadband access networks
Inventors:
David J. Houck, Wai Sum Lai
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Feb 7, 1997
Inventors
David J. Houck
Wai Sum Lai
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.