Granted Patent
Utility
US 5,751,872 · App. 08/772,527
Wavelength demultiplexer
Inventors:
Hans Bissessur, Roland Mestric, Christian Duchet
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Dec 24, 1996
Inventors
Hans Bissessur
Roland Mestric
Christian Duchet
Assignee (at issue)
Alcatel Alsthom Compagnie Generale d'Electricite
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.