Retaining wall block

Retaining wall block
D300253

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Patent D300253
Priority Jun 02 1986
Filed Jun 06 1988
Issued Mar 14 1989
Expiry Mar 14 2003
Inventors Forsberg, …
Assg.orig Keystone R…
Assg.curr Keystone R…
Entity unknown
Referenced by 63
References 36
Maint.: n/a

The ornamental design for a retaining wall block, as shown and described.

FIG. 1 is a bottom front perspective view of a retaining wall block of my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a sectional view taken along line 6--6 of FIG. 2; and

FIG. 7 is a sectional view taken along line 7--7 of FIG. 3.

INVENTORS:

Forsberg, Paul J.

THIS PATENT IS REFERENCED BY THESE PATENTS:

Patent	Priority	Assignee	Title
4926595,	May 01 1989	KAROB CORPORATION	Retaining wall cap unit
5017049,	Mar 15 1990	ANCHOR WALL SYSTEMS, INC	Composite masonry block
5277012,	Jul 22 1992	ST LOUIS RETAINING WALL COMPANY I, L L C	Retaining wall building block
5294216,	Sep 28 1989	ANCHOR WALL SYSTEMS, INC	Composite masonry block
5487623,	Mar 31 1993	The Reinforced Earth Company	Modular block retaining wall construction and components
5490363,	Oct 06 1992	Anchor Wall Sytems, Inc.	Composite masonry block
5589124,	Sep 28 1989	Block Systems, Inc.	Method of forming composite masonry blocks
5624211,	Mar 31 1993	POE, L RICHARD	Modular block retaining wall construction and components
5658098,	Jul 26 1995	Smart Slope LLC	Polymeric retaining wall building block
5704183,	May 04 1993	Anchor Wall Systems, Inc.	Composite masonry block
5709062,	Oct 06 1992	Anchor Wall Systems, Inc.	Composite masonry block
5711129,	Oct 06 1992	Anchor Wall Systems, Inc.	Masonry block
5795105,	Oct 06 1992	ANCHOR WALL SYSTEMS, INC	Composite masonry block
5827015,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
5848511,	Jan 21 1997		Blocks for constructing low-rise ornamental wall and method
5879603,	Nov 08 1996	ANCHOR WALL SYSTEMS, INC	Process for producing masonry block with roughened surface
6029943,	Nov 08 1996	ANCHOR WALL SYSTEMS, INC	Splitting technique
6113318,	Oct 06 1992	Anchor Wall Systems, Inc.	Composite masonry block
6142713,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
6178704,	Nov 08 1996	Anchor Wall Systems, Inc.	Splitting technique
6183168,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
6250850,	Aug 19 1999	ANCHOR WALL SYSTEMS, INC	Block with multifaceted bottom surface
6312197,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
6616382,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
7048472,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
7124754,	Aug 06 2004	DLK INC	Method and device for creating a decorative block feature
7168218,	Jun 11 2004	R&DD CONCEPTS, LLC	Mortarless fence block system
7360970,	Sep 27 1989	Anchor Wall Systems, Inc.	Composite masonry block
7384215,	Oct 06 1992	Anchor Wall Systems, Inc.	Composite masonry block
7823360,	May 24 2006		Open core building blocks system
8272812,	Aug 15 2008	Greenwall Ventures, LLC	Retaining wall system
8745953,	Aug 15 2008	Smart Slope, LLC	Retaining wall system
D340772,	Aug 27 1992	CSTW, Inc.	Retaining wall block
D340776,	Aug 27 1992	CSTW, Inc.	Retaining wall block
D340996,	Jul 22 1992	ST LOUIS RETAINING WALL COMPANY I, L L C	Retaining wall building block
D340997,	Aug 27 1992	CSTW, Inc.	Retaining wall block
D342580,	Aug 27 1992	CSTW, Inc.	Retaining wall block
D347070,	Mar 31 1993	Societe Civile des Brevets Henri C. Vidal	Facing block
D347285,	Jun 18 1992	ST LOUIS RETAINING WALL COMPANY I, L L C	Retaining wall building block
D350611,	Aug 18 1993		Retaining wall block
D351031,	Oct 28 1992	Infinity Stone, Inc.	Retaining wall stone
D362077,	Jul 22 1992	ST LOUIS RETAINING WALL COMPANY I, L L C	Retaining wall facade
D362511,	Aug 16 1993	Societ Civile des Brevets Henri C. Vidal	Cap block
D363786,	Aug 24 1994	Magnum Stone, Inc.	Retaining wall stone
D372106,	Jun 18 1992	ST LOUIS RETAINING WALL COMPANY I, L L C	Retaining wall building block
D381086,	May 03 1995	MELLON BANK, N A	Front face of a retaining wall block
D396302,	Apr 02 1997		Wall system
D397230,	May 03 1995	MELLON BANK, N A	Front face of a retaining wall
D405193,	Jan 08 1997		Cast block
D405543,	Oct 17 1996		Wall block
D430680,	Jan 15 1999	Handy-Stone Corporation	Concrete block
D433158,	Jul 07 1999	Westblock Systems, Inc.; WESTBLOCK SYSTEMS, INC	Retaining wall block
D437422,	Aug 17 1999	ANCHOR WALL SYSTEMS, INC	Face of a retaining wall block
D438640,	Aug 17 1999	ANCHOR WALL SYSTEMS, INC	Face of a retaining wall block
D445512,	Oct 27 1997	ANCHOR WALL SYSTEMS, INC	Retaining wall block
D458693,	Nov 08 1996	ANCHOR WALL SYSTEMS, INC	Retaining wall block
D466228,	Jul 07 1999	Westblock Systems, Inc.	Retaining wall block
D468450,	Jul 07 1999	Westblock Systems, Inc.	Retaining wall block
D475143,	Jul 07 1999	Westblock Systems, Inc.	Retaining wall block
D485371,	Feb 17 2003	Menard, Inc.	Retaining wall block
D509909,	May 25 2004	DLK INC	Retaining wall and block face
D877653,	Sep 18 2017	KEYSTONE RETAINING WALL SYSTEMS LLC	Planter block
ER1376,

THIS PATENT REFERENCES THESE PATENTS:

Patent	Priority	Assignee	Title
1092621,
126547,
1414444,
1456498,
2235646,
228052,
2882689,
2963828,
3036407,
3274742,
3390502,
3430404,
3557505,
3936987,	Jan 13 1975		Interlocking brick or building block and walls constructed therefrom
3995434,	Aug 08 1974	Nippon Tetrapod Co., Ltd.; Robert Q., Palmer	Wave dissipating wall
4016693,	Aug 22 1975	Warren Insulated Bloc, Inc.	Insulated masonry block
4110949,	Jul 05 1976	Baupres AG	Building block
4207718,	May 15 1978	WAVE WEDGE CORPORATION	Concrete block wall
4208850,	May 11 1978		Connector for knock-down cabinet
4228628,	Nov 10 1976		Building blocks and connector means therefor
4229123,	Jan 18 1978		Inclined retaining wall and element therefor
4312606,	Mar 21 1980		Interlocking prefabricated retaining wall system
4335549,	Dec 01 1980	DESIGNER BLOCKS, INC	Method, building structure and side-split block therefore
4454699,	Mar 15 1982	INTERSTATE BRICK COMPANY, A CORP OF UT	Brick fastening device
4496226,	Jul 22 1981	CAMBRIDGE INSTRUMENTS INC , A DE CORP	ANDed motor control system for motorized ophthalmic instrument
4524551,	Mar 10 1981		Construction units for the erection of walls and method of utilization
4572699,	Dec 18 1982	HANS RINNINGER U SOHN GMBH U CO	Paving stone
566924,
810748,
CH205452,
237704,
FR1360872,
FR392474,
GB1385207,
GB2127872A,
GB336,

ASSIGNMENT RECORDS Assignment records on the USPTO

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jun 06 1988		Keystone Retaining Wall Systems, Inc.	(assignment on the face of the patent)
Sep 15 1997	KEYSTONE RETAINING WALL SYSTEMS, INC	U S BANK NATIONAL ASSOCIATION	SECURITY AGREEMENT	008732	0302	pdf
Dec 21 1999	U S BANK NATIONAL ASSOCIATION	KEYSTONE RETAINING WALL SYSTEMS, INC	RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS	011238	0432	pdf

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