Granted Patent
Utility
US 5,790,174 · App. 08/611,422
PSTN architecture for video-on-demand services
Inventors:
Arthur A. Richard, III, Larry A. Litteral
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Mar 6, 1996
Inventors
Arthur A. Richard, III
Larry A. Litteral
Assignee (at issue)
Bell Atlantic Network Services
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.