Patent Assignment
Reel/Frame 004519/0543
Assignment of Assignors Interest.
Recorded: 1986-03-07
Pages: 1
Assignee
CELANESE CORPORATION, A CORP OF DELAWARE
1211 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10036
Covered Property
(1)
Acylation of Naphthalenes
Patent:
4,593,125 →
Application:
06/711,344 →
Related Assignments
(6)
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 →
Merger and Name Change
Mar 31, 2004
From: AMERICAN HOECHST CORPORATION (DE CORPORATION); CELANESE CORPORATION (DE CORPORATION)
To: HOECHST CELANESE CORPORATION
Reel/Frame 014475/0185 →
Change of Name
Mar 31, 2004
From: HOECHST CELANESE CORPORATION
To: HNA HOLDINGS, INC.
Reel/Frame 014506/0001 →
Change of Name
Mar 31, 2004
From: HNA HOLDINGS, INC. (DE CORPORATION)
To: CNA HOLDINGS, INC.
Reel/Frame 014515/0141 →
Security Interest
May 6, 2004
From: CNA HOLDINGS, INC.
To: DEUTSCHE BANK AG, NEW YORK BRANCH
Reel/Frame 014601/0698 →
Security Agreement
Nov 19, 2004
From: CNA HOLDINGS, INC. (F/K/A CELANESE CORPORATION)
To: DEUTSCHE BANK AG, NEW YORK BRANDH
Reel/Frame 015394/0104 →