Patent Assignment
Reel/Frame 004263/0192
Assignment of Assignors Interest.
Recorded: 1984-06-05
Pages: 1
Assignee
E.I. DU PONT DE NEMOURS AND COMPANY
A CORP. OF DE, WILMINGTON, DELAWARE
Covered Property
(1)
Porosity Gradient Electrophoresis Gel
Patent:
4,704,198 →
Application:
06/604,586 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 21, 1998
From: E.I. DU PONT DE NEMOURS & CO.
To: NEN LIFE SCIENCE PRODUCTS, INC.
Reel/Frame 009178/0720 →
Security Interest
Jul 29, 1999
From: NEN ACQUISITION, INC. (TO BE RENAMED AS NEN LIFE SCIENCE PRODUCTS, INC.) (DE CORPORATION)
To: CREDIT SUISSE FIRST BOSTON, AS ADMINISTRATIVE AGENT
Reel/Frame 010113/0001 →