IP Library Assignment 027684/0311
Patent Assignment
Reel/Frame 027684/0311

Assignment of Assignor's Interest

Recorded: 2012-02-10 Pages: 3
Assignors
KOOPMAN, HANS
Executed: 2011-10-24
GILBERT, PETER
Executed: 2012-01-26
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19805
Covered Property (1)
Elastomer Tire Sealing Ring
Patent: 8,757,231 →
Application: 12/686,697 →
Publication: US 2010/0186864
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →