Granted Patent
Utility
US 6,026,079 · App. 08/759,385
Modem to support multiple site call conferenced data communications
Inventor:
Stephen G. Perlman
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Dec 4, 1996
Inventor
Stephen G. Perlman
Assignee (at issue)
WebTV Networks, 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.