IP Library › Assignment 004283/0267
Patent Assignment
Reel/Frame 004283/0267

Assignment of Assignors Interest.

Recorded: 1984-07-25 Pages: 2
Assignors
HACKMAN, E. B.
Executed: 1982-10-07
ZEAGLER, L. D.
Executed: 1982-10-04
Assignee
CELANESE CORPORATION
1211 AVENUE OF THE AMERICAS, A DE CORP., NEW YORK, NEW YORK, 10036
Covered Property (1)
Hydroformylation Process
Patent: 4,480,138 →
Application: 06/433,749 →
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 →