Patent Assignment
Reel/Frame 022276/0762
Assignment of Assignor's Interest
Recorded: 2009-02-18
Pages: 5
Assignee
UNIMIN CORPORATION
258 ELM STREET, NEW CANAAN, CONNECTICUT, 06840
Covered Property
(1)
Method of Making Proppant Used in Gas or Oil Extraction
Application:
61/148,428 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.