Invertible retaining wall block

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention

Reexamination Certificate

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Details

C052S603000, C052S604000, C052S605000

Reexamination Certificate

active

11400923

ABSTRACT:
An invertible retaining wall block comprises a front portion, a rear portion and a neck portion connecting the front portion and rear portion. A projection extends outwardly from the block to interlock with similar blocks in adjacent courses of blocks. One or more notches are provided to the front portion in order to allow the base course of blocks to be placed in an inverted orientation with respect to subsequent courses because the notch provides clearance for the protrusion.

REFERENCES:
patent: 751346 (1904-02-01), Schall
patent: 1526730 (1925-02-01), Zottoli
patent: 1727362 (1929-09-01), Bone
patent: 4123881 (1978-11-01), Muse
patent: 4470728 (1984-09-01), Broadbent
patent: 4592678 (1986-06-01), McNinch, Jr. et al.
patent: 4802320 (1989-02-01), Forsberg
patent: 4909010 (1990-03-01), Gravier
patent: 4914876 (1990-04-01), Forsberg
patent: 4920712 (1990-05-01), Dean, Jr.
patent: D317048 (1991-05-01), Forsberg
patent: 5044834 (1991-09-01), Janopaul, Jr.
patent: 5064313 (1991-11-01), Risi et al.
patent: 5145288 (1992-09-01), Borcherdt
patent: 5163261 (1992-11-01), O'Neill
patent: 5337527 (1994-08-01), Wagenaar
patent: 5474405 (1995-12-01), Anderson et al.
patent: 5484235 (1996-01-01), Hilfiker et al.
patent: 5490363 (1996-02-01), Woolford
patent: 5505034 (1996-04-01), Dueck
patent: 5511910 (1996-04-01), Scales
patent: 5540525 (1996-07-01), Miller et al.
patent: 5551809 (1996-09-01), Forsberg
patent: 5653558 (1997-08-01), Price
patent: 5673530 (1997-10-01), Bailey, II
patent: 5704183 (1998-01-01), Woolford
patent: 5709062 (1998-01-01), Woolford
patent: 5711129 (1998-01-01), Woolford
patent: 5795105 (1998-08-01), Guth
patent: 5823709 (1998-10-01), Maher et al.
patent: 5827015 (1998-10-01), Woolford et al.
patent: D405543 (1999-02-01), Shillingburg
patent: 5913790 (1999-06-01), Dawson
patent: 6019550 (2000-02-01), Wrigley et al.
patent: 6113318 (2000-09-01), Guth
patent: 6168353 (2001-01-01), Price
patent: 6168354 (2001-01-01), Martin et al.
patent: RE37278 (2001-07-01), Forsberg
patent: 6336773 (2002-01-01), Anderson et al.
patent: D459487 (2002-06-01), Bott
patent: 6474036 (2002-11-01), Martin et al.
patent: 6536994 (2003-03-01), Race
patent: 6622445 (2003-09-01), Shillingburg et al.
patent: 6641334 (2003-11-01), Woolford
patent: 6651401 (2003-11-01), Price et al.
patent: 6652197 (2003-11-01), Shaw
patent: 6701687 (2004-03-01), Shillingburg
patent: 6792731 (2004-09-01), Bott et al.
patent: D497399 (2004-10-01), May et al.
patent: D501935 (2005-02-01), Dawson et al.
patent: D508739 (2005-08-01), Shillingburg
patent: D509911 (2005-09-01), Shillingburg
patent: 7096635 (2006-08-01), Price et al.
patent: D530832 (2006-10-01), Rainey
patent: 2005/0016106 (2005-01-01), Dawson et al.
patent: 54107105 (1979-08-01), None
patent: 54107106 (1979-08-01), None
patent: 59-167842 (1984-11-01), None
KeySystem 1, Retaining Wall System Brochure; Copyrighted 2000; pp. 1-8.
Case Study, Water Application, Keystone Retaining Wall System; Upper Cumberland River Flood Project; Copyrighted 2000; pp. 1-4.
Case Study; Governmental Application; Keystone Retaining Wall System; Port of Seattle Terminal #5; S. W. harbor Reclamation; Copyrighted 2000; pp. 1-4.
Keystone; Retaining Wall System; The First To Last; Copyrighted 1997; pp. 1-20.
International Search Report, 2 pages.

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