Granted Patent
Utility
US 5,999,970 · App. 08/630,397
Access system and method for providing interactive access to an information source through a television distribution system
Inventors:
Harold Krisbergh, David E. Wachob, Joseph E. Augenbraun, Jae Hea Edward Lee
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Apr 10, 1996
Inventors
Harold Krisbergh
David E. Wachob
Joseph E. Augenbraun
Jae Hea Edward Lee
Assignee (at issue)
WorldGate Communications
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.