|
The ornamental design for a wall block, as shown and described. |
FIG. 1 is a perspective view of a wall block showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a side elevational view thereof, the opposite side being a mirror image thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a perspective view of a second embodiment of a wall block showing my new design;
FIG. 8 is a front elevational view of FIG. 7;
FIG. 9 is a top plan view of FIG. 7;
FIG. 10 is a bottom plan view of FIG. 7;
FIG. 11 is a side elevational view of FIG. 7, the opposite side being a mirror image thereof;
FIG. 12 is a rear elevational of FIG. 7;
FIG. 13 is a perspective view of a third embodiment of a wall block showing my new design;
FIG. 14 is a front elevational view of FIG. 13;
FIG. 15 is a top plan view of FIG. 13;
FIG. 16 is a bottom plan view of FIG. 13;
FIG. 17 is a side elevational view of FIG. 13, the opposite side being a mirror image thereof; and
FIG. 18 is a rear elevational view of FIG. 13.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 21 1988 | Keystone Retaining Wall Systems, Inc. | (assignment on the face of the patent) | / | |||
Dec 29 1988 | FORSBERG, PAUL J | KEYSTONE RETAINING WALL SYSTEMS, INC , 7600 FRANCE AVE , SOUTH, EDINA, MN 55435, A CORP OF MN | ASSIGNMENT OF ASSIGNORS INTEREST | 005060 | /0817 | |
Sep 15 1997 | KEYSTONE RETAINING WALL SYSTEMS, INC | U S BANK NATIONAL ASSOCIATION | SECURITY AGREEMENT | 008732 | /0302 | |
Dec 21 1999 | U S BANK NATIONAL ASSOCIATION | KEYSTONE RETAINING WALL SYSTEMS, INC | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 011238 | /0432 | |
Dec 07 2004 | KEYSTONE RETAINING WALL SYSTEMS, INC | WACHOVIA BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT | NOTICE OF GRANT OF SECURITY INTEREST | 015676 | /0385 | |
Jan 31 2006 | WACHOVIA BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT | KEYSTONE RETAINING WALL SYSTEMS, INC | TERMINATION OF SECURITY INTEREST IN PATENTS | 017115 | /0305 |
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