IP Library › Assignment 023156/0758
Patent Assignment
Reel/Frame 023156/0758

Assignment of Assignor's Interest

Recorded: 2009-08-27 Pages: 3
Assignors
MACDONALD, ROBERT A.
Executed: 2005-06-13
DAWSON, WILLIAM B.
Executed: 2005-06-13
Assignee
KEYSTONE RETAINING WALL SYSTEMS, INC.
4444 WEST 78TH STREET, BLOOMINGTON, MINNESOTA, 55435
Covered Property (1)
Method of Making a Retaining Wall Using Wall Blocks and Geogrid
Application: 12/543,893 →
Publication: US 2009/0304459
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Agreement Sep 22, 2010
From: CONTECH CONSTRUCTION PRODUCTS, INC.; CONTECH BRIDGE SOLUTIONS INC.; CDS TECHNOLOGIES, INC.; CONTECH EARCH STABILIZATION SOLUTIONS INC.
To: WELLS FARGO BANK, N.A.
Reel/Frame 025026/0472 →