Patent Assignment
Reel/Frame 003986/0438
Assignment of Assignors Interest.
Recorded: 1982-03-29
Pages: 2
Assignors
TSAI, SHAN-PU
Executed: 1982-03-26
BENEZRA, LEO L.
Executed: 1982-03-26
HORVAT, LEWIS R.
Executed: 1982-03-26
HAZZARD, JOHN P.
Executed: 1982-03-26
Assignee
DIAMOND SHAMROCK CORPORATION
DALLAS, TEXAS
Covered Property
(1)
Dimensionally Stable Asbestos-Polytetrafluoroethylene Diaphragms for Chloralkali Electrolytic Cells
Patent:
4,444,640 →
Application:
06/362,865 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name (See Document for Details), Effective 9-1-83 and 10-26-83
Nov 7, 1983
From: DIAMOND SHAMROCK CORPORATION CHANGED TO DIAMOND CHEMICALS COMPANY
To: DIAMOND SHAMROCK CHEMICALS COMPANY
Reel/Frame 004197/0130 →
Assignment of Assignors Interest.
Oct 29, 1984
From: DIAMOND SHAMROCK CORPORATION, 717 N. HARWOOD STREET, DALLAS, TX 75201
To: ELTECH SYSTEMS CORPORATION
Reel/Frame 004357/0479 →
Security Interest
Dec 4, 2000
From: ELTECH SYSTEMS CORPORATION; ELTECH SYSTEMS FOREIGN SALES CORPORATION; ELTECH SYSTEMS, L.P., L.L.L.P.; ELGARD CORPORATION
To: MELLON BANK, N.A., AS AGENT
Reel/Frame 011442/0165 →
Release of Security Agreement
Apr 2, 2003
From: MELLON BANK, N.A., AS AGENT
To: ELTECH SYSTEMS CORPORATION
Reel/Frame 013922/0792 →