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The ornamental design for a structural block, as shown. |
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 |
D429531, | Mar 17 1999 | VONDROSS, KERRY | Structural block |
D467668, | Nov 10 1999 | A S OLIVIN | Building block with profiled edges |
Patent | Priority | Assignee | Title |
1441156, | |||
2933146, | |||
3506089, | |||
3774339, | |||
3837426, | |||
3866001, | |||
4016693, | Aug 22 1975 | Warren Insulated Bloc, Inc. | Insulated masonry block |
4197669, | Aug 01 1977 | Construction elements and assembled structures | |
4269013, | Apr 26 1979 | Insulated building block wall construction | |
4319661, | Sep 20 1978 | PROUDFOOT COMPANY, INC , THE | Acoustic space absorber unit |
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 |
5560173, | Nov 30 1990 | Concrete or ceramics elements | |
185611, | |||
192288, | |||
D264996, | Apr 11 1980 | Sculptured ventilating concrete block | |
D265689, | Jun 16 1980 | Masonry block | |
26828, | |||
D291601, | Sep 11 1985 | RPG Diffusor Systems, Inc. | Acoustical baffle |
D306764, | Jan 29 1987 | RPG DIFFUSER SYSTEMS, INC | Acoustical baffle |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 23 1996 | VONDROS, KERRY L | Best Block Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008456 | /0981 | |
Aug 26 1996 | Best Block Company | (assignment on the face of the patent) | / |
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