Patent Assignment
Reel/Frame 003821/0424
Assignment of Assignors Interest.
Recorded: 1981-01-07
Pages: 1
Assignor
DRESSLER HANS
Executed: 1979-11-26
Assignee
KOPPERS COMPANY, INC.
KOPPERS BLDG., PITTSBURGH, PENNSYLVANIA, 15219
Covered Property
(1)
Aryl Sulfide/Sulfonate Polymer
Patent:
4,271,285 →
Application:
06/098,920 →
Related Assignments
(12)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Dec 16, 1988
From: ISC ACQUISTION COMPANY
To: ALGEMENE BANK NEDERLAND N.V., HOUSTON AGENCY
Reel/Frame 004994/0188 →
Assignment of Assignors Interest.
Jan 23, 1989
From: KOPPERS COMPANY, INC.,
To: ISC ACQUISITION COMPANY, A CORP. OF DE.
Reel/Frame 005009/0188 →
Change of Name January 17, 1989, Delaware
Jul 31, 1989
From: ISC ACQUISITION COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 005138/0231 →
Change of Name
Sep 25, 1989
From: ISC ACQUISITION COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 005142/0420 →
Security Interest
Dec 20, 1993
From: INDSPEC CHEMICAL CORPORATION
To: BANKERS TRUST COMPANY
Reel/Frame 006800/0535 →
Merger
Feb 7, 1994
From: INDSPEC CHEMICAL CORPORATION
To: INDSPEC TECHNOLOGIES LTD.
Reel/Frame 006853/0155 →
Assignment of Assignor's Interest
Feb 17, 1994
From: INDSPEC TECHNOLOGIES LTD., A PENNSYLVANIA BUSINESS TRUST
To: SPECIALTY ACQUISITION SUB., INC. A DELAWARE CORPORATION
Reel/Frame 006867/0210 →
Change of Name
Feb 24, 1994
From: SPECIALTY ACQUISITION SUB., INC. A DE CORP.
To: INDSPEC CHEMICAL CORPORATION A DE CORP.
Reel/Frame 006867/0680 →
Security Interest
Oct 15, 1996
From: INDSPEC CHEMICAL CORPORATION; INDSPEC HOLDING CORPORATION; INDSPEC TECHNOLOGIES, LTD; ICC RESIN TECHNOLOGY, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 008167/0530 →
Release of Security Interest
Oct 15, 1996
From: BANKERS TRUST COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 008231/0756 →
Security Agreement
Jul 6, 1998
From: INDSPEC CHEMICAL CORPORATION
To: ABN AMRO BANK N.V.
Reel/Frame 009297/0134 →
Reslease of Security Interest
Jul 6, 1998
From: PNC BANK, NATIONAL ASSOCIATION
To: INDSPEC CHEMICAL CORPORATION; INDSPEC HOLDING CORPORATION; INDSPEC TECHNOLOGIES, LTD.; ICC RESIN TECHNOLOGY, INC.
Reel/Frame 009297/0125 →