IP Library Assignment 023386/0270
Patent Assignment
Reel/Frame 023386/0270

Assignment of Assignor's Interest

Recorded: 2009-10-16 Pages: 3
Assignor
DOAN, STEPHEN P.
Executed: 2009-09-30
Assignee
COLUMBIA STEEL CASTING CO., INC.
10425 N. BLOSS AVENUE, PORTLAND, OREGON, 97283
Covered Property (1)
Dump Block with Improved Assembly Features
Patent: 8,112,912 →
Application: 12/564,888 →
Publication: US 2011/0067275
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 27, 2022
From: COLUMBIA STEEL CASTING CO., INC.
To: COLUMBIA STEEL CAST PRODUCTS LLC
Reel/Frame 062212/0862 →
Assignment of Assignor's Interest Dec 6, 2023
From: COLUMBIA STEEL CAST PRODUCTS LLC
To: COLUMBIA IP HOLDCO, LLC
Reel/Frame 065777/0062 →