Granted Patent
Utility
US 6,678,891 · App. 09/195,167
Navigational user interface for interactive television
Inventors:
Scott Wilcox, Robert Montgomery, Thomas A. McDonald, Praveen Roa, Deborah A. Spencer
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Nov 19, 1998
Inventors
Scott Wilcox
Robert Montgomery
Thomas A. McDonald
Praveen Roa
Deborah A. Spencer
Assignee (at issue)
Prasara Technologies, 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.