Granted Patent
Utility
US 5,600,468 · App. 08/387,596
Apparatus for converting wavelength-division multiplexed optical signals
Inventor:
John Barber
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Feb 13, 1995
Inventor
John Barber
Assignee (at issue)
JDS Fitel 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.