Granted Patent
Utility
US 6,049,644 · App. 08/855,337
Optical routing device having a substantially flat passband
Inventor:
Corrado Dragone
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: May 13, 1997
Inventor
Corrado Dragone
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.