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Publication numberUSD387431 S
Publication typeGrant
Application numberUS 29/050,684
Publication date9 Dec 1997
Filing date22 Feb 1996
Publication number050684, 29050684, US D387431 S, US D387431S, US-S-D387431, USD387431 S, USD387431S
InventorsJean-François Tremblay
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hollow construction block
US D387431 S
Abstract  available in
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  1. The ornamental design for a hollow construction block, as shown and described.

FIG. 1 is a perspective view of a hollow construction block showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

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US694828217 Apr 200327 Sep 2005Allan Block CorporationInterlocking building block
US700743612 Jan 20057 Mar 2006Kelley Jay RSnap-in-place building block
US77122816 Apr 200511 May 2010Allan Block CorporationInterlocking building block
US8756894 *24 Feb 201124 Jun 2014Impossible Objects LlcFoldable construction blocks
US88002306 Nov 201312 Aug 2014Daniel O'ConnorStacking masonry block system with transition block and utility groove running therethrough
US20100043335 *2 Nov 200925 Feb 2010O'connor DanielStacking masonry block system with transition block and utility groove running therethrough
US20110206872 *25 Aug 2011Robert SwartzFoldable construction blocks
US20120260603 *12 Apr 201218 Oct 2012Thompson Dean SConcrete exterior wall system
WO2007128082A1 *10 May 200715 Nov 2007Benex Technologies Pty LtdImprovements relating to a concrete masonry hollow block
U.S. ClassificationD25/113, D25/118