Patent Assignment
Reel/Frame 003922/0772
Assignment of Assignors Interest.
Recorded: 1981-10-19
Pages: 1
Assignor
MANNING, HAROLD E.
Executed: 1980-10-21
Assignee
PET5O-TEX CHEMICAL CORPORATION
A CORP. OF DE., HOUSTON, TEXAS
Covered Property
(1)
Isobutene Removal from C4 Streams
Patent:
4,313,016 →
Application:
06/199,842 →
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 →