Granted Patent
Utility
US 5,448,392 · App. 08/025,116
Process for the optical transmission of a multiplex of electrical carriers and apparatus for performing such a process
Inventor:
Lucien Pophillat
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Mar 2, 1993
Inventor
Lucien Pophillat
Assignee (at issue)
France Telecom Etablissement Autonome De Droit Public
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.