Patent Assignment
Reel/Frame 003818/0014
Assignment of Assignors Interest.
Recorded: 1980-09-22
Pages: 1
Assignor
CHEA RAMON C. W. JR.
Executed: 1980-09-18
Assignee
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
320 PARK AVE., NEW YORK, NEW YORK, 10020
Covered Property
(1)
Subscriber Line Interface Circuit Utilizing Impedance Synthesizer and Shared Voltage Source for Loop Current Regulation Control
Patent:
4,317,963 →
Application:
06/189,976 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 22, 1985
From: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
To: ITT CORPORATION
Reel/Frame 004389/0606 →
Change of Name
Jan 21, 1988
From: U.S. HOLDING COMPANY, INC.
To: ALCATEL USA, CORP.
Reel/Frame 004827/0276 →
Assignment of Assignors Interest.
May 24, 1991
From: ALCATEL USA CORP.
To: ALCATEL NA NETWORK SYSTEMS CORP.
Reel/Frame 005826/0422 →
Merger Effective on 09/30/1991DE
Apr 6, 1992
From: ALCATEL NA NETWORK SYSTEMS CORP.
To: ALCATEL NETWORK SYSTEMS, INC.
Reel/Frame 006071/0470 →