IP Library › Assignment 025348/0033
Patent Assignment
Reel/Frame 025348/0033

Assignment of Assignor's Interest

Recorded: 2010-11-11 Pages: 2
Assignors
FRENTZEL, THEODORE WILLIAM, JR.
Executed: 2010-09-17
ARNOLD, CARL BERNARD
Executed: 2010-09-22
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property (1)
Method and Apparatus for Tensioning a Printing Form
Patent: 8,397,636 →
Application: 12/887,648 →
Publication: US 2012/0067995
Related Assignments (2)
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 ELECTRONICS, INC.
Reel/Frame 049583/0269 →
Assignment of Assignor's Interest Mar 30, 2026
From: DUPONT ELECTRONICS, INC.
To: SP HOLDING II ET, INC.
Reel/Frame 075319/0463 →