Patent Assignment
Reel/Frame 004273/0502
Assignment of Assignors Interest.
Recorded: 1984-06-12
Pages: 1
Assignor
BELL, CRAIG J.
Executed: 1984-05-29
Covered Property
(1)
Self-Sealing Check Valve
Patent:
4,653,539 →
Application:
06/619,933 →
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.
Mar 11, 1991
From: MALLINCKRODT, INC., A CORP. OF DE
To: MALLINCKRODT MEDICAL, INC., A DE CORP.
Reel/Frame 005635/0379 →