Patent Assignment
Reel/Frame 003949/0348
Assignment of Assignors Interest.
Recorded: 1982-02-19
Pages: 1
Assignee
PETRO-TEX CHEMICAL CORPORATION, A CORP. OF DE
HOUSTON, TEXAS, 77252
Covered Property
(1)
Modified Zinc Ferrite Oxidative Dehydrogenation Catalysts in Oxidative Dehydrogenation
Patent:
4,332,972 →
Application:
05/940,478 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Termination of Security Agreement Recorded July 25, 1986. Reel 4634 Frame 711-723, Debt Has Been Paid
Mar 13, 1989
From: PETRO-TEK CHEMICAL CORPORATION
To: TEXAS PETROCHEMICALS CORPORATION, 8707 KATY FREEWAY, STE. 300, HOUSTON, TX 77024
Reel/Frame 005060/0478 →
Security Interest
Jul 29, 1996
From: TEXAS PETROCHEMICALS CORPORATION
To: TEXAS COMMERCE BANK NATIONAL ASSOC.
Reel/Frame 008067/0087 →