Patent
   D301064
Priority
May 14 1986
Filed
May 14 1986
Issued
May 09 1989
Expiry
May 09 2003
Assg.orig
Entity
unknown
62
28
n/a
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.

Forsberg, Paul J.

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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 14 1986Keystone Retaining Wall Systems, Inc.(assignment on the face of the patent)
Sep 15 1986FORSBERG, PAUL J KEYSTONE RETAINING WALL SYSTEMS, INC , A CORP OF MINNESOTAASSIGNMENT OF ASSIGNORS INTEREST 0046480846 pdf
Sep 15 1997KEYSTONE RETAINING WALL SYSTEMS, INC U S BANK NATIONAL ASSOCIATIONSECURITY AGREEMENT0087320302 pdf
Dec 21 1999U S BANK NATIONAL ASSOCIATIONKEYSTONE RETAINING WALL SYSTEMS, INC RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS 0112380432 pdf
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