Granted Patent
Utility
US 5,847,862 · App. 08/980,849
Multi-channel optical fiber communication system
Inventors:
Andrew R. Chraplyvy, Fabrizio Forghieri, Robert William Tkach
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Nov 29, 1997
Inventors
Andrew R. Chraplyvy
Fabrizio Forghieri
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.