IP Library Assignment 023143/0339
Patent Assignment
Reel/Frame 023143/0339

Assignment of Assignor's Interest

Recorded: 2009-08-25 Pages: 2
Assignor
ZHU, REIYAO
Executed: 2009-07-17
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property (1)
Limited-Antimony-Content and Antimony-Free Modacrylic / Aramid Blends for Improved Flash Fire and Arc Protection
Patent: 8,069,643 →
Application: 12/476,595 →
Publication: US 2010/0299817
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT SAFETY & CONSTRUCTION, INC.
Reel/Frame 051180/0648 →