Granted Patent
Utility
US 5,566,014 · App. 08/366,335
Tunable add/drop optical filter providing arbitrary channel arrangements
Inventor:
Bernard Glance
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Dec 28, 1994
Inventor
Bernard Glance
Assignee (at issue)
AT&T CORP.
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.