Granted Patent
Utility
US 6,421,337 · App. 08/990,941
Converting device for alleviating switch congestion caused by long hold times for on-line access calls
Inventors:
Sridhar Rao, Seeta Hariharan, Shou-Huey Jiang, Steven Robert Medeiros
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Dec 15, 1997
Inventors
Sridhar Rao
Seeta Hariharan
Shou-Huey Jiang
Steven Robert Medeiros
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.