Patent Assignment
Reel/Frame 005289/0922
Assignment of Assignors Interest.
Recorded: 1990-04-09
Pages: 2
Assignor
WHELAND, ROBERT C.
Executed: 1990-01-30
Assignee
E.I. DU PONT DE NEMOURS AND COMPANY
A CORP. OF DE, WILMINGTON, DELAWARE
Covered Property
(1)
Porous Substrates with a High Concentration of Amine Groups
Patent:
5,164,475 →
Application:
07/473,071 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignor Hereby Confirms the Entire Interest in Said Invention to Assignee as of 01-01-1991.
Dec 3, 1991
From: E. I. DU PONT DE NEMOURS AND COMPANY, A DE CORP.
To: DU PONT MERCK
Reel/Frame 005931/0768 →
Change of Name
Nov 2, 1998
From: DUPONT MERCK PHARMACEUTICAL COMPANY, THE
To: DUPONT PHARMACEUTICALS COMPANY
Reel/Frame 009586/0702 →