Two-way communication over a single transmission line between one or more information sources and a group of telephones, computers, and televisions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 18, 2009
Grant Date -
Sep 4, 2003
app pub date -
Mar 31, 2003
filing date -
Jul 14, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for communicating data over a plurality of telephone lines between a source of information and a plurality of destinations of data, wherein each of the telephone lines connects to a different one of the plurality of destinations and also carries voice signals to and from a plurality of telephone devices.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully