US PATENT SUBCLASS 52 / 649.1
.~.~ Reinforcement for settable material

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

633  DF  OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR {12}
648.1  DF  .~ Three-dimensional space-defining {9}
649.1.~.~ Reinforcement for settable material {2}
649.2  DF  .~.~.~> For beam, column, etc. {2}
649.8  DF  .~.~.~> Spacer-positioner

DEFINITION

Classification: 52/649.1

Reinforcement for settable material:

(under subclass 648.1) Subject matter which serves to add tensile strength to a substance, usually concrete, in which it is ultimately imbedded.