Patent Assignment
Reel/Frame 004395/0616
Assignment of Assignors Interest.
Recorded: 1985-05-03
Pages: 1
Assignor
VARWIG, JOHN W.
Executed: 1985-04-25
Assignee
MALLINCKRODT, INC., A CORP. OF MISSOURI
ST. LOUIS,, MISSOURI
Covered Property
(1)
Ethanolamine Salt of N-Nitrosophenylhydroxylamine and Inhibiting Polymerization Therewith
Patent:
4,772,740 →
Application:
06/708,313 →
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 →