|
The ornamental design for a concrete block, as shown and described. |
FIG. 1 is a top perspective view of a concrete block showing my new design;
FIG. 2 is an end elevational view thereof;
FIG. 3 is an opposite end elevational view thereof;
FIG. 4 is a side elevational view thereof, the opposite side being a mirror image thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
Patent | Priority | Assignee | Title |
D264997, | Apr 11 1980 | LINDSLEY, WARREN F B | Ventilating concrete block |
D264998, | Apr 11 1980 | LINDSLEY, WARREN F B | Louvered concrete block |
D323699, | Feb 21 1989 | H K RESEARCH & DEVELOPMENT, INC | Magnetic water softener |
D796066, | Aug 15 2016 | Building block | |
D971757, | Dec 19 2019 | 3M Innovative Properties Company | Mounting location marker |
Patent | Priority | Assignee | Title |
ER7181, | |||
FR54,538, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |