Granted Patent
Utility
US 5,821,985 · App. 08/948,488
Multi-point videoconference system having a fixed control station for data transfer
Inventor:
Junichi Iizawa
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Oct 10, 1997
Inventor
Junichi Iizawa
Assignee (at issue)
NEC CORPORATION
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.