|
The ornamental design of a wall block, substantially as shown and described. |
FIG. 1 is a perspective view of a first embodiment of the wall block showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a sectional view taken along the line 6--6 of FIG. 2;
FIG. 7 is a sectional view taken along the line 7--7 of FIG. 3;
FIG. 8 is a second modification of the wall block of my new design;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a bottom view of FIG. 8;
FIG. 11 is a front view of FIG. 8;
FIG. 12 is a rear view of FIG. 8;
FIG. 13 is a sectional view taken along the line 13--13 of FIG. 9;
FIG. 14 is a sectional view taken along the line 14--14 of FIG. 10;
FIG. 15 is a perspective view of a third embodiment of the wall block of my new design;
FIG. 16 is a top view of FIG. 15;
FIG. 17 is a bottom view of FIG. 15;
FIG. 18 is a front view of FIG. 15;
FIG. 19 is a rear view of FIG. 15;
FIG. 20 is a sectional view taken along the line 20--20 of FIG. 16;
FIG. 21 is a sectional view taken along the line 21--21 of FIG. 17;
FIG. 22 is a perspective view of a fourth embodiment of the wall block of my new design;
FIG. 23 is a top view of FIG. 22;
FIG. 24 is a bottom view of FIG. 22;
FIG. 25 is a front view of FIG. 22;
FIG. 26 is a rear view of FIG. 22;
FIG. 27 is a sectional view taken along the line 27--27 of FIG. 23;
FIG. 28 is a sectional view taken along the line 28--28 of FIG. 24;
FIG. 29 is a perspective view of a fifth embodiment of the wall block of my new design;
FIG. 30 is a top view of FIG. 29;
FIG. 31 is a bottom view of FIG. 29;
FIG. 32 is a front view of FIG. 29;
FIG. 33 is a rear view of FIG. 29;
FIG. 34 is a sectional view taken along the line 34--34 of FIG. 30; and
FIG. 35 is a sectional view taken along the line 35--35 of FIG. 31.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 02 1986 | Keystone Retaining Wall Systems, Inc. | (assignment on the face of the patent) | / | |||
Sep 15 1986 | FORSBERG, PAUL J | KEYSTONE RETAINING WALL SYSTEMS, INC , A CORP OF MINNESOTA | ASSIGNMENT OF ASSIGNORS INTEREST | 004648 | /0846 | |
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 |
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