Upper beam slab bolster for use in construction

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair

Reexamination Certificate

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Details

C052S677000, C052S689000, C052S680000, C052S686000, CD25S199000

Reexamination Certificate

active

07870703

ABSTRACT:
A bolster for use in construction has a beam, a pair of spaced apart foot members, a first plurality of leg members on one side of the beam, and a second plurality of leg members on an opposite side of the beam. The first plurality of leg members are connected at one end to the beam and at the opposite end to one of the pair of spaced apart foot members. The second plurality of leg members are connected at one end to the beam and at the opposite end to the other of the pair of spaced apart foot members. The beam, pair of spaced apart foot members and first and second pluralities of leg members are integrally formed together of a polymeric material. Multiple lengths of bolster may be joined together in a snap-fit engagement.

REFERENCES:
patent: 3655162 (1972-04-01), Shoemaker
patent: 5664390 (1997-09-01), Sorkin
patent: D445668 (2001-07-01), Hills, Sr.
patent: 6772571 (2004-08-01), Sorkin
patent: 6775954 (2004-08-01), Sorkin
patent: 6948291 (2005-09-01), Haslem et al.
patent: 7108453 (2006-09-01), Harris
patent: 7284354 (2007-10-01), Sorkin
patent: D571189 (2008-06-01), Verelli et al.
patent: 7497059 (2009-03-01), Bennett
patent: 2009/0165420 (2009-07-01), Pfeffer et al.

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