Patent Assignment
Reel/Frame 024910/0042
Assignment of Assignor's Interest
Recorded: 2010-08-25
Pages: 3
Assignee
EASTMAN CHEMICAL COMPANY
P.O. BOX 511, KINGSPORT, TENNESSEE, 37662
Covered Property
(1)
Terephthalic Acid Purge Filtration Rate by Controlling % Water in Filter Feed Slurry
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 25, 2011
From: EASTMAN CHEMICAL COMPANY
To: GRUPO PETROTEMEX, S.A. DE C.V.
Reel/Frame 027112/0013 →
Corrective Assignment to Correct the Property Number Previously Recorded at Reel: 25728 Frame: 217. Assignor(S) Hereby Confirms the Assignment.
Jul 31, 2019
From: EASTMAN CHEMICAL COMPANY
To: GRUPO PETROTEMEX, S.A. DE C.V.
Reel/Frame 049918/0739 →
Change of Name
Jan 11, 2022
From: GRUPO PETROTEMEX, S.A. DE C.V.
To: ALPEK POLYESTER, S.A. DE C.V.
Reel/Frame 058691/0337 →