Granted Patent
Utility
US 6,141,328 · App. 08/939,376
Method and system for two-way negotiated call hold
Inventors:
Jafar Nabkel, Gregory Wilfred Bruening
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Sep 29, 1997
Inventors
Jafar Nabkel
Gregory Wilfred Bruening
Assignees (at issue)
Qwest Communications International Inc.
MediaOne Group, 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.