Patent Assignment
Reel/Frame 005276/0356
Assignment of Assignors Interest.
Recorded: 1990-04-13
Pages: 1
Assignee
Covered Property
(1)
Preparation of Unsaturated Ketones from Acetone and Paraformaldehyde (Ii)
Patent:
5,004,839 →
Application:
07/508,454 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →