Patent Assignment
Reel/Frame 005140/0943
Assignment of Assignors Interest.
Recorded: 1989-09-18
Pages: 2
Covered Property
(1)
Process for Production of 1,1-Dichloro-1-Fluoroethane and/or 1-Chloro-1,1-Difluoroethane
Patent:
4,996,378 →
Application:
07/379,518 →
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 →