Patent Assignment
Reel/Frame 004222/0682
Assignment of Assignors Interest.
Recorded: 1984-02-16
Pages: 1
Assignor
COATES, JOHN S.
Executed: 1983-08-12
Assignee
E.I. DU PONT DE NEMOURS AND COMPANY
A CORP. OF DE, WILMINGTON, DELAWARE
Covered Property
(1)
Catalyst for Anthraquinone Hydrogen Peroxide Process
Patent:
4,521,531 →
Application:
06/523,190 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 27, 1998
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: ELF ATOCHEM NORTH AMERICA, INC.
Reel/Frame 009638/0225 →
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 →