US PATENT SUBCLASS 52 / 337
.~ Intersecting sustainers of barrier material; e.g., lattice type

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

319  DF  CAST IN SITU CONCRETE BARRIER WITH LATERALLY PROJECTING RIB-TYPE SUSTAINER {8}
337.~ Intersecting sustainers of barrier material; e.g., lattice type

DEFINITION

Classification: 52/337

(under subclass 319) Structure in which parallel sustainers of settable material are intersected by, and are integral with, parallel sustainers disposed normally to the first mentioned sustainers, and together form a grid or lattice, often termed a "waffle ceiling" in the art.

SEE OR SEARCH THIS CLASS, SUBCLASS:

252, for cast reinforced column with distinct sustainers therebetween.

475.1+, for a preshaped unit in a preassembled cornered peripheral frame.