Patent Assignment
Reel/Frame 021252/0880
Assignment of Assignor's Interest
Recorded: 2008-07-17
Pages: 3
Assignor
MACDONALD, ROBERT A.
Executed: 2008-07-16
Assignee
KEYSTONE RETAINING WALL SYSTEMS, INC.
4444 WEST 78TH STREET, BLOOMINGTON, MINNESOTA, 55435
Covered Property
(1)
Mold Box and Method of Manufacturing a Block
Application:
12/138,566 →
Publication:
US 2008/0307740
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.