IP Library › Granted Patent US 6,504,963
Granted Patent Utility
US 6,504,963 · App. 09/207,064

Optical fiber protection switch

Inventors: Xiaojun Fang, Li-Ping Chen, Boris Faer
Patented Case View Patent ↗
Granted: Jan 7, 2003 Filed: Dec 7, 1998
Inventors
Xiaojun Fang
Li-Ping Chen
Boris Faer
Assignee (at issue)
SPRINT COMMUNICATIONS COMPANY, L.P.

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 6,504,963
App. No.
09/207,064
Filed
1998-12-07
Granted
2003-01-07
Kind
B1