Patent Assignment
Reel/Frame 005976/0163
Assignment of Assignors Interest.
Recorded: 1991-12-19
Pages: 9
Assignee
HOECHST CELANESE CORPORATION A CORPORATION OF DE
86 MORRIS AVENUE, SUMMIT, NEW JERSEY, 07901
Covered Property
(1)
Compactible Benzimidazole Polymeric Compositions
Patent:
5,247,010 →
Application:
07/810,663 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 19, 1999
From: HOECHST CELANESE CORPORATION
To: CELANESE ACETATE LLC
Reel/Frame 009901/0364 →
Assignment of Assignor's Interest
Oct 13, 2005
From: CELANESE ACETATE LLC
To: CNA HOLDINGS, INC.
Reel/Frame 016630/0718 →
Assignment of Assignor's Interest
Oct 14, 2005
From: CNA HOLDINGS, INC.
To: CELANESE ADVANCED MATERIALS, INC.
Reel/Frame 016641/0084 →
Assignment of Assignor's Interest
Oct 14, 2005
From: CELANESE ADVANCED MATERIALS, INC.
To: PBI PERFORMANCE PRODUCTS, INC.
Reel/Frame 016641/0102 →