Patent Assignment
Reel/Frame 006402/0779
Assignment of Assignors Interest.
Recorded: 1993-02-02
Pages: 2
Assignor
SPIVACK, JOHN D.
Executed: 1986-12-18
Assignee
CIBA-GEIGY CORPORATION
444 SAW MILL RIVER ROAD, PATENT DEPARTMENT, ARDSLEY, NEW YORK, 10502
Covered Property
(1)
Substituted N-Thiomethylphenothiazines as Lubricant Stabilizers
Patent:
5,211,862 →
Application:
07/481,771 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.