IP Library Assignment 004323/0844
Patent Assignment
Reel/Frame 004323/0844

Assignment of Assignors Interest.

Recorded: 1984-11-01 Pages: 1
Assignor
DUEY, CLARENCE J. JR.
Executed: 1983-03-24
Assignee
CELANESE CORPORATION, A CORP OF DE
1211 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10036
Covered Property (1)
Copper and Manganese Removal from C6-C9 Saturated Aliphatic Monocarboxylic Acids
Patent: 4,496,488 →
Application: 06/480,568 →
Related Assignments (2)
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 →