Patent Assignment
Reel/Frame 013110/0660
Assignment of Assignor's Interest
Recorded: 2002-07-22
Pages: 5
Assignor
ARISTECH CHEMICAL CORPORATION
Executed: 1998-12-08
Assignee
KOPPERS INDUSTRIES, INC.
436 SEVENTH AVENUE, PITTSBURGH, PENNSYLVANIA, 15219
Covered Properties
(2)
Process for Removing Solids from Coal Tar
Patent:
4,436,615 →
Application:
06/493,118 →
Process for Making Carbon Electrode Impregnating Pitch from Coal Tar
Patent:
5,326,457 →
Application:
07/925,160 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
May 9, 1983
From: BOODMAN, NORMAN S.; FARR, ELVIN L.; OSTERHOLM, ROBERT J.; GREEN, NEULAN B., III
To: UNITED STATES STEEL CORPOATION
Reel/Frame 004128/0066 →
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 Assignors Interest.
Aug 6, 1992
From: STIPANOVICH, JOHN, JR.
To: ARISTECH CHEMICAL CORPORATION A CORPORATION OF DELAWARE
Reel/Frame 006235/0115 →
Security Agreement
Jan 14, 1998
From: KOPPERS INDUSTRIES, INC.
To: MELLON BANK, N.A.
Reel/Frame 008869/0926 →
Assignment of Assignor's Interest
Mar 5, 2002
From: ARISTECH CHEMICAL CORPORATION
To: SUNOCO, INC. (R&M)
Reel/Frame 012665/0008 →