Granted Patent
Utility
US 6,181,848 · App. 08/995,965
Temperature-independent optical multiplexer and/or demultiplexer
Inventors:
Adrien Bruno, Arnaud Rigny
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Dec 22, 1997
Inventors
Adrien Bruno
Arnaud Rigny
Assignee (at issue)
FRANCE TELECOM
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.