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The ornamental design for a structural block, as shown. |
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FIG. 1 is a top, front, and left side isometric view of the structural block of the invention;
FIG. 2 is a top view of the structural block;
FIG. 3 is a front view of the structural block;
FIG. 4 is a left side view of the structural block;
FIG. 5 is a right side view of the structural block;
FIG. 6 is a bottom view of the structural block;
FIG. 7 is a top, front and left side isometric view of an alternate embodiment of the structural block of the invention;
FIG. 8 is a top view of the alternate embodiment shown in FIG. 7;
FIG. 9 is a front view of the alternate embodiment shown in FIG. 7;
FIG. 10 is a left side view of the alternate embodiment shown in FIG. 7;
FIG. 11 is a right side view of the alternate embodiment shown in FIG. 7; and,
FIG. 12 is a bottom view of the alternate embodiment shown in FIG. 7.
| Patent | Priority | Assignee | Title |
| 9267260, | Sep 20 2011 | KEYSTONE RETAINING WALL SYSTEMS LLC | Slant wall block and wall section including same |
| D729413, | Feb 03 2014 | Terreal | Brick |
| D730544, | Nov 21 2013 | EMBANKMENT SEATING INTERNATIONAL LIMITED, KPMG | Seating block |
| D742037, | Jun 11 2013 | Masonry block | |
| D752246, | Mar 14 2014 | Prefabricated building part |
| Patent | Priority | Assignee | Title |
| 1441156, | |||
| 2933146, | |||
| 3506089, | |||
| 3837426, | |||
| 3866001, | |||
| 4269013, | Apr 26 1979 | Insulated building block wall construction | |
| 4319661, | Sep 20 1978 | PROUDFOOT COMPANY, INC , THE | Acoustic space absorber unit |
| 439641, | |||
| 4499142, | Mar 31 1983 | Trenwyth Industris, Inc. | Faced masonry units and facing composition therefor |
| 4821839, | Apr 10 1987 | RPG Diffusor Systems, Inc. | Sound absorbing diffusor |
| 4833852, | May 14 1984 | ALLIED-SIGNAL INC , A CORP OF DE | Insulating system for building blocks |
| 4964486, | Nov 06 1989 | RPG DIFFUSOR SYSTEMS, INC | Cinder block modular diffusor |
| 5027920, | Nov 06 1989 | RPG Diffusor Systems, Inc. | Cinder block modular diffusor |
| 5168129, | Feb 19 1991 | RPG Diffusor Systems, Inc. | Variable acoustics modular performance shell |
| 5193318, | Oct 23 1991 | RPG Diffusor Systems, Inc.; RPG DIFFUSOR SYSTEMS, INC , A CORP OF MD | Acoustical diffusing and absorbing cinder blocks |
| 5226267, | Oct 23 1991 | RPG Diffusor Systems, Inc.; RPG DIFFUSOR SYSTEMS, INC | Acoustical diffusing and absorbing cinder blocks |
| 5401921, | Sep 13 1993 | RPG Diffusor Systems, Inc. | Two-dimensional primitive root diffusor |
| 5700983, | Aug 26 1996 | VONDROSS, KERRY | Sound attenuating structural block |
| 916756, | |||
| D291601, | Sep 11 1985 | RPG Diffusor Systems, Inc. | Acoustical baffle |
| D306764, | Jan 29 1987 | RPG DIFFUSER SYSTEMS, INC | Acoustical baffle |
| D387183, | Aug 26 1996 | Best Block Company | Structural block |
| D409312, | Feb 11 1997 | Decorative landscape stone | |
| FR941261, | |||
| FR975512, | |||
| FR985243, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 09 1999 | VONDROSS, KERRY L | Best Block Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009936 | /0224 | |
| Mar 17 1999 | Best Block Company | (assignment on the face of the patent) | / | |||
| Apr 06 2012 | Best Block Company | VONDROSS, KERRY | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 028600 | /0052 |
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