Patent Assignment
Reel/Frame 004806/0062
Assignment of Assignors Interest.
Recorded: 1987-12-23
Pages: 1
Assignors
GRIMSLEY, S. ALLEN
Executed: 1987-12-09
ROBINSON, JAMES C.
Executed: 1987-12-09
SCHROEDER, MARK A.
Executed: 1987-12-09
Assignee
Covered Property
(1)
Method of Bleaching High Yield Rule by Using Dithionite Ion and Excluding Oxygen
Patent:
4,863,564 →
Application:
07/136,975 →
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Feb 17, 1989
From: VIRGINIA CHEMICALS INC.
To: HOECHST CELANESE CORPORATION, A CORP. OF DE
Reel/Frame 005025/0662 →
Assignment of Assignor's Interest
Dec 12, 2002
From: HOECHST CELANESE CORPORATION
To: CLARIANT FINANCE (BVI) LIMITED
Reel/Frame 013295/0423 →
Assignment of Assignor's Interest
Jan 3, 2003
From: CLARIANT FINANCE (BVI) LIMITED
To: CLARIANT INTERNATIONAL LTD.
Reel/Frame 013323/0729 →
Assignment of Assignor's Interest
Jan 10, 2003
From: CLARIANT INTERNATIONAL LTD.
To: CLARIANT CORPORATION
Reel/Frame 013352/0131 →
Assignment of Assignor's Interest
Feb 12, 2003
From: CLARIANT CORPORATION
To: CHEMTRADE PERFORMANCE CHEMICALS CANADA, INC.
Reel/Frame 013758/0252 →
Assignment of Assignor's Interest
Feb 12, 2003
From: CHEMTRADE PERFORMANCE CHEMICALS CANADA INC.
To: CHEMTRADE PERFORMANCE CHEMICALS US, LLC
Reel/Frame 013758/0693 →
Security Interest
Mar 6, 2003
From: CHEMTRADE PERFORMANCE CHEMICALS US, LLC
To: BANK OF NOVA SCOTIA, THE
Reel/Frame 013821/0080 →