Patent Assignment
Reel/Frame 005065/0217
Assignment of Assignors Interest.
Recorded: 1989-04-20
Pages: 1
Assignee
E.I. DU PONT DE NEMOURS AND COMPANY, A CORP. OF DE
WILMINGTON, DELAWARE
Covered Property
(1)
Labeled Cryopreserved Cells for Use as Targets in Cytotoxicity Assays
Patent:
4,983,515 →
Application:
07/311,513 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Nov 14, 1991
From: E.I. DU PONT DE NEMOURS AND COMPANY
To: DU PONT MERCK PHARMACEUTICAL COMPANY
Reel/Frame 005955/0010 →
Change of Name
Nov 2, 1998
From: DUPONT MERCK PHARMACEUTICAL COMPANY, THE
To: DUPONT PHARMACEUTICALS COMPANY
Reel/Frame 009586/0702 →
Security Interest in Patent Licenses
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 010144/0036 →
Change of Name
Feb 11, 2002
From: DUPONT PHARMACEUTICALS COMPANY
To: BRISTOL-MYERS SQUIBB PHARMA COMPANY
Reel/Frame 012607/0038 →