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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:

Class Number Class Name Patents
D25/116 Arcuate detail 44
D25/118 Rectangular or square detail 113


Patents under this class:

Patent Number Title Of Patent Date Issued
D691287 Square masonry block Oct. 8, 2013
D691288 Interlocking pavement block Oct. 8, 2013
D674918 Square masonry block Jan. 22, 2013
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
D482800 Revetment block Nov. 25, 2003
D482801 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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