Granted Patent
Utility
US 5,220,664 · App. 07/736,469
Merging network with three or more simultaneous inputs
Inventor:
Tony Tung-Ying Lee
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Jul 26, 1991
Inventor
Tony Tung-Ying Lee
Assignee (at issue)
Bell Communications Research, 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.