Patent Assignment
Reel/Frame 005134/0314
Assignment of Assignors Interest.
Recorded: 1989-07-17
Pages: 2
Assignee
PENNWALT CORPORATION
THREE PARKWAY, A CORP. OF PA, PHILADELPHIA, PENNSYLVANIA, 19102
Covered Property
(1)
Removal of Unsaturated Carbon Compounds from 1,1-Dichloro-1- Fluoroethane
Patent:
4,948,479 →
Application:
07/362,730 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Effective on 12/29/1989PA
May 15, 1990
From: ATOCHEM INC., M&T CHEMICALS INC., AND PENWALT CORPORATION MERGED AND CHANGES NAME
To: ATOCHEM NORTH AMERICA, INC.
Reel/Frame 005368/0602 →
Change of Name
Jul 25, 2000
From: ELF ATOCHEM NORTH AMERICA, INC., A CORP. OF PENNSYLVANIA
To: ATOFINA CHEMICALS, INC., A CORP. OF PENNSYLVANIA
Reel/Frame 011007/0001 →
Change of Name
Nov 15, 2004
From: ATOFINA CHEMICALS, INC.
To: ARKEMA INC.
Reel/Frame 015394/0628 →