Patent Assignment
Reel/Frame 004530/0403
Assignment of Assignors Interest.
Recorded: 1986-03-20
Pages: 1
Assignee
UNITED STATES STEEL CORPORATION
PITTSBURGH, PENNSYLVANIA
Covered Property
(1)
Purifying Cumene Hydroperoxide
Patent:
4,654,124 →
Application:
06/841,984 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Dec 12, 1986
From: USX CORPORATION; USX CORPORATION
To: ARISTECH CHEMICAL CORPORATION
Reel/Frame 004681/0925 →
Security Interest
May 4, 1990
From: ARISTECH CHEMICAL CORPORATION
To: MITSUBISHI BANK LIMITED, THE, NEW YORK BRANCH, AS AGENT
Reel/Frame 005294/0818 →
Assignment of Assignor's Interest
Dec 13, 1996
From: USX CORPORATION
To: ARISTECH CHEMICAL CORPORATION
Reel/Frame 008268/0305 →
Assignment of Assignor's Interest
Mar 5, 2002
From: ARISTECH CHEMICAL CORPORATION
To: SUNOCO, INC. (R&M)
Reel/Frame 012665/0008 →
Release of Security Interest
Nov 24, 2003
From: BANK OF TOKYO-MITSUBISHI, LTD., ACTING THROUGH ITS NEW YORK BRANCH, SUCCESSOR BY MERGER TO THE MITSUBISHI ANK, LIMITED, NEW YORK BRANCH, THE
To: ARISTECH CHEMICAL CORPORATION
Reel/Frame 014709/0196 →