Granted Patent
Utility
US 5,831,761 · App. 08/862,805
High capacity optical fiber network
Inventors:
Andrew R. Chraplyvy, Robert William Tkach
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: May 23, 1997
Inventors
Andrew R. Chraplyvy
Robert William Tkach
Assignee (at issue)
LUCENT TECHNOLOGIES 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.