PTO Wrapper PDF
Dossier Espace Google
Patent
   D372106
Priority
Jun 18 1992
Filed
Jun 18 1992
Issued
Jul 23 1996
Expiry
Jul 23 2010
Inventors
Woolbright…
Assg.orig
St. Louis …
ST LOUIS …
Assg.curr
ST LOUIS …
Entity
unknown
Referenced by
4
References
28
Maint.:
n/a
The ornamental design for retaining wall building block, as shown and described.

FIG. 1 is a top plan view of a retaining wall building block of a first embodiment showing my new design;

FIG. 2 is a right side elevational view of the retaining wall building block, the left side being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front view of a retaining wall building block of a second embodiment.
INVENTORS:

Woolbright, Mark A.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
8272812, Aug 15 2008 Greenwall Ventures, LLC Retaining wall system
8745953, Aug 15 2008 Smart Slope, LLC Retaining wall system
9695596, May 02 2011 Pacific Prebenched Ltd.; PACIFIC PREBENCHED LTD Natural rock panel, natural rock veneer panel and panel support apparatus
D416094, Oct 27 1998 Building element
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1015584,
1349552,
2313363,
3073061,
3389499,
4060952, May 05 1976 Brick
4107894, Apr 30 1975 Interlocking cementitious building blocks
4229123, Jan 18 1978 Inclined retaining wall and element therefor
4379659, Sep 05 1980 Waldormills Company Establishment Building blocks
4426176, Aug 10 1981 TOKUYAMA SODA CO , LTD , A CORP OF JAPAN L-Shaped concrete block and method for constructing a retaining wall by such L-shaped concrete blocks
4521138, Sep 05 1980 WALDERMILLS COMPANY ESTABLISHMENT Building blocks
4565043, Sep 02 1983 Building block with reinforcement and/or positioning lugs and recesses
4671706, Oct 17 1985 GIUSEPPE SALVO; SALVO, GIUSEPPE Concrete retaining wall block
4684294, Jan 15 1986 Retaining wall construction element
4914876, Sep 15 1986 MELLON BANK, N A Retaining wall with flexible mechanical soil stabilizing sheet
4920712, Jan 31 1989 KAROB CORPORATION Concrete retaining wall block, retaining wall and method of construction therefore
4930283, May 19 1988 Waldormills Company Establishment Brick
5044834, Jul 26 1990 ANCHOR WALL SYSTEMS, INC Retaining wall construction and blocks therefor
5066169, Feb 19 1991 THE PETER GAVIN SPRAY TRUST UNDER AGREEMENT DATED MAY 26, 2004, BY AND BETWEEN NORMAN W GAVIN AS GRANTOR AND PETER GAVIN AND MICHAEL N DELGASS AS TRUSTEES Retaining wall system
5072566, Sep 24 1990 Landscaping block
5108231, Jan 16 1989 Embankment block
217244,
D296007, May 27 1986 KEYSTONE RETAINING WALL SYSTEMS, INC , A CORP OF MINNESOTA Wall block
D296365, Sep 18 1986 Keystone Retaining Wall Systems, Inc. Construction block
D300253, Jun 02 1986 Keystone Retaining Wall Systems, Inc. Retaining wall block
D300254, Jun 02 1986 Keystone Retaining Wall Systems, Inc. Retaining wall block
D310267, Apr 07 1989 Retaining wall block
FR2651258,
ASSIGNMENT RECORDS    Assignment records on the USPTO
//////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 18 1992St. Louis Retaining Wall Company(assignment on the face of the patent)
Jun 18 1992WOOLBRIGHT, MARK A ST LOUIS RETAINING WALL COMPANY, INC , A CORP OF MOASSIGNMENT OF ASSIGNORS INTEREST 0061710222 pdf
Apr 28 1997WOOLBRIGHT, MARK A HERCULES MANUFACTURING, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0087090612 pdf
Jul 19 2002ST LOUIS RETAINING WALL COMPANY, INC HERCULES MFG , INC MERGER SEE DOCUMENT FOR DETAILS 0155710095 pdf
Apr 21 2006ST LOUIS RETAINING WALL COMPANY I, L L C ST LOUIS RETAINING WALL COMPANY, L L C CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0202340096 pdf
May 13 2006HERCULES MFG , INC ST LOUIS RETAINING WALL COMPANY I, L L C ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0177660849 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule