Patent Assignment
Reel/Frame 003974/0230
Assignment of Assignors Interest.
Recorded: 1982-01-29
Pages: 2
Assignee
MALLINCKRODT, INC., A CORP. OF MO.
MISSOURI
Covered Property
(1)
Process for Preparing P-Aminophenol and Alkyl Substituted P-Aminophenol
Patent:
4,415,753 →
Application:
06/343,993 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Feb 14, 1986
From: MALCO, INC.
To: MALLINCKRODT, INC.
Reel/Frame 004572/0403 →
Assignment of Assignors Interest.
Feb 14, 1986
From: MALLINCKRODT, INC.
To: MALCO, INC., ST. LOUIS, MISSOURI A CORP. OF DE.
Reel/Frame 004572/0411 →
Assignment of Assignors Interest.
Dec 24, 1990
From: MALLINCKRODT, INC., A DE CORP.
To: MALLINCKRODT SPECIALTY CHEMICALS COMPANY, A DE CORP.
Reel/Frame 005602/0024 →