Granted Patent
Utility
US 6,674,457 · App. 09/890,149
Audio-video conference system with parallel networks
Inventors:
Steven Gareth Davies, Stephen John Roe
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jul 25, 2001
Inventors
Steven Gareth Davies
Stephen John Roe
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.