Granted Patent
Utility
US 5,828,472 · App. 08/579,432
Photonic switching matrix
Inventor:
Francesco Masetti
Patented Case
View Patent ↗
Granted: Oct 27, 1998
Filed: Dec 27, 1995
Inventor
Francesco Masetti
Assignee (at issue)
Alcatel N.V.
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.