Patent Assignment
Reel/Frame 005846/0868
Assignment of Assignors Interest.
Recorded: 1991-09-12
Pages: 6
Assignors
BERGANO, NEAL S.
Executed: 1991-09-11
DRUCKENMILLER, RICHARD F.
Executed: 1991-09-11
KERFOOT, FRANKLIN W., III
Executed: 1991-09-11
TRISCHITTA, PATRICK R.
Executed: 1991-09-11
Assignee
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
A CORP. OF NEW YORK, 550 MADISON AVENUE, NEW YORK, NEW YORK, 10022-3201
Covered Property
(1)
Pump Redundancy for Optical Amplifiers
Patent:
5,173,957 →
Application:
07/758,665 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 23, 1998
From: TYCO SUBMARINE SYSTEMS LTD.
To: CIENA CORPORATION
Reel/Frame 009648/0593 →
Assignment of Assignor's Interest
Dec 13, 2002
From: CIENA CORPORATION
To: CIENA PROPERTIES, INC.
Reel/Frame 013578/0868 →
Merger
Dec 17, 2004
From: CIENA PROPERTIES
To: CIENA CORPORATION
Reel/Frame 016069/0435 →