Patent Assignment
Reel/Frame 019941/0195
Assignment of Assignor's Interest
Recorded: 2007-10-10
Pages: 5
Assignee
GREYSTONE, INC.
3330 EAST 23RD STREET, COLUMBUS, NEBRASKA, 68601
Covered Property
(1)
Sand Dewatering Device and Method
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.