Granted Patent
Utility
US 5,677,786 · App. 08/672,573
Device for reducing the optical noise due to four wave mixing
Inventor:
Fausto Meli
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Jun 28, 1996
Inventor
Fausto Meli
Assignee (at issue)
Pirelli Cavi S.p.A.
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.