IP Library › Granted Patent US 5,809,196
Granted Patent Utility
US 5,809,196 · App. 08/768,129

Dispersion-shifted optical fibers for wavelength division multiplexing

Inventors: Fausto Meli, Giorgio Grasso
Patented Case View Patent ↗
Granted: Sep 15, 1998 Filed: Dec 17, 1996
Inventors
Fausto Meli
Giorgio Grasso
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,809,196
App. No.
08/768,129
Filed
1996-12-17
Granted
1998-09-15
Kind
A