Patent Assignment
Reel/Frame 003840/0145
Assignment of Assignors Interest.
Recorded: 1981-03-09
Pages: 1
Assignee
SHELL OIL COMPANY
A CORP. OF DE, HOUSTON, TEXAS, 77001
Covered Property
(1)
Diphydrothiazine Derivatives
Patent:
4,279,903 →
Application:
06/151,569 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
May 29, 1981
From: SHELL OIL COMPANY
To: INTERNATIONAL MINERALS & CHEMICAL CORPORATON A CORP. OF N.Y.
Reel/Frame 003867/0486 →
Assignment of Assignor's Interest
Jan 12, 1998
From: MALLINCKRODT, INC.
To: SCHERING-PLOUGH ANIMAL HEALTH CORPORATION
Reel/Frame 008886/0806 →