IP Library › Granted Patent US 7,447,434
Granted Patent B2
US 7,447,434 · App. 10/782,464 · Granted Nov 4, 2008

Optical transmission systems, devices, and method

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Quick Facts
Patent No.
US 7,447,434
App. No.
10/782,464
Granted
Nov 4, 2008
Kind
B2
Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2021
From: LEVEL 3 COMMUNICATIONS, LLC
To: OPTIC153 LLC
Reel/Frame 056469/0773 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2011
From: BROADWING, LLC
To: LEVEL 3 COMMUNICATIONS, LLC
Reel/Frame 026533/0440 →
CHANGE OF NAME Recorded Apr 27, 2011
From: BROADWING CORPORATION
To: BROADWING, LLC
Reel/Frame 026188/0654 →
CHANGE OF NAME Recorded May 22, 2007
From: CORVIS CORPORATION
To: BROADWING CORPORATION
Reel/Frame 019323/0858 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2004
From: PRICE, ALISTAIR J.
To: CORVIS CORPORATION
Reel/Frame 014837/0487 →