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Patent
   D296365
Priority
Sep 18 1986
Filed
Sep 18 1986
Issued
Jun 21 1988
Expiry
Jun 21 2002
Inventors
Forsberg, …
Assg.orig
KEYSTONE R…
Assg.curr
Keystone R…
Entity
unknown
Referenced by
71
References
28
Maint.:
n/a
The ornamental design for a construction block, as shown.

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

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom 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 the line 6--6 of FIG. 3; and

FIG. 7 is a sectional view taken along the line 7--7 of FIG. 2.
INVENTORS:

Forsberg, Paul J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
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4926595, May 01 1989 KAROB CORPORATION Retaining wall cap unit
5017049, Mar 15 1990 ANCHOR WALL SYSTEMS, INC Composite masonry block
5062610, Sep 28 1989 Block Systems Inc.; BLOCK SYSTEMS INC , A CORP OF MN Composite masonry block mold for use in block molding machines
5249950, Jan 30 1992 ANCHOR WALL SYSTEMS, INC Heated stripper shoe assembly
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
5522682, Mar 02 1994 TENSAR CORPORATION, LLC A GA CORP Modular wall block system and grid connection device for use therewith
5540525, Jun 06 1994 TENSAR CORPORATION, LLC A GA CORP Modular block retaining wall system and method of constructing same
5589124, Sep 28 1989 Block Systems, Inc. Method of forming composite masonry blocks
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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
5673530, Jan 25 1996 WILMINGTON TRUST, NATIONAL ASSOCIATION Modular block retaining wall system
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5709062, Oct 06 1992 Anchor Wall Systems, Inc. Composite masonry block
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5827015, Sep 27 1989 Anchor Wall Systems, Inc. Composite masonry block
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6029943, Nov 08 1996 ANCHOR WALL SYSTEMS, INC Splitting technique
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6142713, Sep 27 1989 Anchor Wall Systems, Inc. Composite masonry block
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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
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6488448, Oct 15 1993 Kiltie Corp. Block module
6616382, Sep 27 1989 Anchor Wall Systems, Inc. Composite masonry block
6960048, Oct 15 1999 Kiltie Corporation Modular segmented retaining wall
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
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7244079, Oct 15 1999 Kiltie Corporation Retaining wall system
7360970, Sep 27 1989 Anchor Wall Systems, Inc. Composite masonry block
7384215, Oct 06 1992 Anchor Wall Systems, Inc. Composite masonry block
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D435302, Oct 15 1999 Kiltie Corp. Front surface of a retaining wall module
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D438640, Aug 17 1999 ANCHOR WALL SYSTEMS, INC Face of a retaining wall block
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D452332, Oct 15 1999 Kiltie Corporation Modular retaining wall block
D458387, Oct 15 1999 Kiltie Corp. Modular retaining wall block
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D485371, Feb 17 2003 Menard, Inc. Retaining wall block
D501935, Jul 21 2003 KEYSTONE RETAINING WALL SYSTEMS, INC Wall block
D509909, May 25 2004 DLK INC Retaining wall and block face
D537533, Sep 28 2005 Kiltie Corporation Retaining wall block
D552258, Sep 28 2005 Kiltie Corporation Retaining wall block
D569010, Sep 28 2005 Kiltie Corporation Retaining wall block
D877653, Sep 18 2017 KEYSTONE RETAINING WALL SYSTEMS LLC Planter block
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1092621,
126547,
1456498,
2235646,
228052,
2963828,
3036407,
3274742,
3390502,
3430404,
3557505,
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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
4110948, Mar 11 1977 Thermal insulating clips for metal insulated walls and roofs
4207718, May 15 1978 WAVE WEDGE CORPORATION Concrete block wall
4208805, Jun 25 1979 Navigational calculating device
4228628, Nov 10 1976 Building blocks and connector means therefor
4229123, Jan 18 1978 Inclined retaining wall and element therefor
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
4524551, Mar 10 1981 Construction units for the erection of walls and method of utilization
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ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 15 1986FORSBERG, PAUL J KEYSTONE RETAINING WALL SYSTEMS, INC , A CORP OF MINNESOTAASSIGNMENT OF ASSIGNORS INTEREST 0046480846 pdf
Sep 18 1986Keystone Retaining Wall Systems, Inc.(assignment on the face of the patent)
Sep 15 1997KEYSTONE RETAINING WALL SYSTEMS, INC U S BANK NATIONAL ASSOCIATIONSECURITY AGREEMENT0087320302 pdf
Dec 21 1999U S BANK NATIONAL ASSOCIATIONKEYSTONE RETAINING WALL SYSTEMS, INC RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS 0112380432 pdf
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