US PATENT SUBCLASS 52 / 653.1
.~.~ Framework

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}
653.1.~.~ Framework {1}
653.2  DF  .~.~.~> Having tubular member

DEFINITION

Classification: 52/653.1

Framework:

(under subclass 648.1) Subject matter comprising elongate members that form the skeleton which limits and defines the complete utilitarian volume (i.e., for occupancy, buoyancy, fireplace, etc.) of a subunit of a structure.

(1) Note. The earth, or a separate structure, may compose one or more enclosing barriers of the volume.