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Patent Assignment
Reel/Frame 031189/0470

Assignment of Assignor's Interest

Recorded: 2013-09-12 Pages: 3
Assignor
GREFHORST, CORNELIS
Executed: 2013-09-09
Assignee
S&B INDUSTRIAL MINERALS NORTH AMERICA, INC.
225 NEWCASTLE STREET, BRUNSWICK, GEORGIA, 31521
Covered Property (1)
Method for Improvement of Casting Quality
Patent: 9,138,803 →
Application: 13/525,733 →
Publication: US 2012/0325113
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 29, 2013
From: LAFAY, VICTOR S.; PINE, MARK
To: S&B INDUSTRIAL MINERALS NORTH AMERICA, INC.
Reel/Frame 031110/0312 →
Assignment of Assignor's Interest Feb 15, 2019
From: IMERYS MINERALS USA, INC.
To: IMERYS USA, INC.
Reel/Frame 048345/0380 →
Change of Name Feb 15, 2019
From: S & B INDUSTRIAL MINERALS NORTH AMERICA, INC.
To: IMERYS MINERALS USA, INC.
Reel/Frame 048356/0424 →