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Class Information
Number: D25/115
Name: Building units and construction elements > Architectural stock material > Construction block or brick type (20) > Perforated or openwork (21) > Symmetrical
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| D551358 |
Building block |
Sep. 18, 2007 |
| D516735 |
Revetment block |
Mar. 7, 2006 |
| D513077 |
Construction block |
Dec. 20, 2005 |
| D512784 |
Construction block |
Dec. 13, 2005 |
| D509597 |
Construction concrete block |
Sep. 13, 2005 |
| 6896445 |
Modular artificial reef, sea wall and marine habitat |
May. 24, 2005 |
| 6854220 |
Retaining wall system |
Feb. 15, 2005 |
| D496738 |
Building module |
Sep. 28, 2004 |
| D482801 |
Revetment block |
Nov. 25, 2003 |
| D482800 |
Revetment block |
Nov. 25, 2003 |
| D439678 |
Masonry block |
Mar. 27, 2001 |
| D423114 |
Paving stone |
Apr. 18, 2000 |
| D417506 |
Retaining wall block |
Dec. 7, 1999 |
| D399577 |
Revetment block |
Oct. 13, 1998 |
| D397451 |
Section of a retaining wall with plantable blocks |
Aug. 25, 1998 |
| D384168 |
Plantable wall block |
Sep. 23, 1997 |
| D383857 |
Retaining wall block |
Sep. 16, 1997 |
| D365404 |
Soil erosion prevention block |
Dec. 19, 1995 |
| D351914 |
Soil erosion prevention block |
Oct. 25, 1994 |
| 4426815 |
Mortarless concrete block system having reinforcing bond beam courses |
Jan. 24, 1984 |
| 4372091 |
Precast concrete structural unit and composite wall structure |
Feb. 8, 1983 |
| D259214 |
Soil erosion prevention block |
May. 12, 1981 |
| D252160 |
Combined plural spacer and guide insert module |
Jun. 19, 1979 |
| 4083190 |
Fundamental armor module in breakwater net linked system |
Apr. 11, 1978 |
| 4026087 |
Building block |
May. 31, 1977 |
| D244201 |
Interlocking building block |
May. 3, 1977 |
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