US PATENT SUBCLASS 52 / 335
.~ Sheet-form backer supported on upper terminal of sustainer


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}
335.~ Sheet-form backer supported on upper terminal of sustainer {1}
336  DF  .~.~> Ridges on corrugated backing crossing sustainer


DEFINITION

Classification: 52/335

(under subclass 319) Structure including a preformed sheetlike member carried on the upper surface of the sustainer and spanning the space between plural sustainers, which member supports the cast barrier-forming material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

344+, particularly subclass 354 for a settable material (plaster) backer fixed to a furring, joist or stud.