|
The ornamental design for a convex block, as shown and described. |
FIG. 1 is a perspective view of a first embodiment of the convex block of my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a top view thereof, the bottom view being a mirror image thereof;
FIG. 4 is an end view thereof, the opposite end being a mirror image thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a front perspective view of a second embodiment of the convex block of my new design;
FIG. 7 is a front elevational view of FIG. 6;
FIG. 8 is a top plan view of FIG. 6, the bottom view being a mirror image thereof;
FIG. 9 is an end view of FIG. 6, the opposite end being a mirror image thereof;
FIG. 10 is a rear view of FIG. 6;
FIG. 11 is a perspective view of a third embodiment of the convex block of my new design;
FIG. 12 is a front view of FIG. 11;
FIG. 13 is a top view of FIG. 11, the bottom view being a mirror image thereof;
FIG. 14 is an end view of FIG. 11, the opposite end being a mirror image thereof;
FIG. 15 is a rear view of FIG. 11;
FIG. 16 is a front perspective view of a fourth embodiment of the convex block of my new design;
FIG. 17 is a front view of FIG. 16;
FIG. 18 is a top view of FIG. 16, the bottom view being the mirror image thereof;
FIG. 19 is an end view of FIG. 16, the opposite end being a mirror image thereof; and
FIG. 20 is a rear view of FIG. 16.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 14 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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