Patent Assignment
Reel/Frame 004646/0660
Assignment of Assignors Interest.
Recorded: 1986-12-22
Pages: 1
Assignor
DE FAZIO, CHARLES A.
Executed: 1985-05-15
Assignee
CELANESE CORPORATION, A CORP OF DE
1211 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10036
Covered Property
(1)
Preparation of High Molecular Weight Polyacrylates by Inverse Emulsion Polymerization
Patent:
4,656,222 →
Application:
06/734,521 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Mar 10, 1989
From: CELANESE CORPORATION, A CORP. OF DE (MERGED INTO)
To: AMERICAN HOECHST CORPORATION, A CORP. OF DE
Reel/Frame 005046/0390 →
Assignment of Assignor's Interest
Mar 27, 1998
From: HOECHST CELANESE CORPORATION
To: CELANESE INTERNATIONAL CORPORATION
Reel/Frame 009052/0337 →
Assignment of Assignor's Interest
Mar 15, 2004
From: CELANESE INTERNATIONAL CORPORATION
To: THE DOW CHEMICAL COMPANY
Reel/Frame 015098/0195 →