Granted Patent
Utility
US 5,189,673 · App. 07/738,181
Method and apparatus for controlling switched video in an optical fiber telecommunications system
Inventors:
Larry W. Burton, Joseph E. Sutherland, Paul M. Matsumura, Karen V. Ball, Richard M. Czerwiec
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Jul 30, 1991
Inventors
Larry W. Burton
Joseph E. Sutherland
Paul M. Matsumura
Karen V. Ball
Richard M. Czerwiec
Assignee (at issue)
Alcatel Network Systems, 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.