Patent Assignment
Reel/Frame 004852/0736
Assignment of Assignors Interest.
Recorded: 1988-02-05
Pages: 1
Assignee
DUBOIS CHEMICALS, INC.
1100 DUBOIS TOWER, A CORP. OF DE., CINCINNATI, OHIO, 45202
Covered Property
(1)
Oxygen Scavenger for Boiler Water and Method of Use
Patent:
4,891,141 →
Application:
07/131,754 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jul 11, 1991
From: DUBOIS CHEMICALS, INC., A CORPORATION OF DE
To: DIVERSEY CORPORATION, A
Reel/Frame 005765/0265 →
Assignment of Assignor's Interest
Jul 15, 1997
From: DIVERSEY CORPORATION (CORP. OF CANADA)
To: UNILEVER, N.V. (CORP. OF THE NETHERLANDS)
Reel/Frame 008535/0726 →
Assignment of Assignor's Interest
Jul 15, 1997
From: UNILEVER, N.V. (CORP. OF THE NETHERLANDS)
To: DIVERSEY LEVER, INC.
Reel/Frame 008545/0784 →
Assignment of Assignor's Interest
Sep 10, 2002
From: DIVERSEYLEVER, INC.
To: DIVERSEY IP INTERNATIONAL BV
Reel/Frame 013067/0395 →