Patent Assignment
Reel/Frame 020999/0448
Assignment of Assignor's Interest
Recorded: 2008-05-22
Pages: 2
Assignor
KALT, DAVID S.
Executed: 2008-05-22
Assignee
OPTIONSXPRESS HOLDINGS, INC.
311 WEST MONROE STREET, SUITE 1000, CHICAGO, ILLINOIS, 60606
Covered Property
(1)
Trading system and methods
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.