Patent Assignment
Reel/Frame 010638/0589
Assignment of Assignor's Interest
Recorded: 2000-02-29
Pages: 3
Assignors
KAMINSKY, ROSS G.
Executed: 1999-12-29
ANGELL, RICHARD A.
Executed: 1999-12-29
EVORA, GORDON D.
Executed: 1999-12-29
Assignee
CHICAGO BOARD OPTIONS EXCHANGE
400 SOUTH LASALLE STREET, 7TH FLOOR, CHICAGO, ILLINOIS, 60605
Covered Property
(1)
Automated Trading Exchange System Having Integrated Quote Risk Monitoring and Integrated Quote Modification Services
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.