Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Reexamination Certificate
2011-01-18
2011-01-18
McKinnon, Terrell (Department: 3635)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Spacer-positioner; e.g., rebar chair
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.
Akbasli Alp
Egbert Law Offices PLLC
McKinnon Terrell
LandOfFree
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