Granted Patent
Utility
US 6,771,773 · App. 09/392,659
Digital switching system with shared analog line
Inventors:
Paul Hanrieder, William Sung, Kevin Golka, Steven Rhodes, Richard Martin, Jeffrey Jay McIntosh
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Sep 9, 1999
Inventors
Paul Hanrieder
William Sung
Kevin Golka
Steven Rhodes
Richard Martin
Jeffrey Jay McIntosh
Assignee (at issue)
Nortel Networks 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.