US PATENT SUBCLASS 249 / 31
.~.~.~.~.~ Utilizing spaced cores of unitary construction transverse to joist

Current as of: June, 1999
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249 /   HD   STATIC MOLDS

1  DF  IN SITU CONSTRUCTION ENGINEERING TYPE OR BUILDING TYPE-MOLD OR FORM {4}
13  DF  .~ Forming building structure {5}
18  DF  .~.~ Barrier or sustainer, e.g., wall, joist, etc. {5}
26  DF  .~.~.~ Plural barriers, or plural sustainers, or barrier and sustainer mold {2}
28  DF  .~.~.~.~ Floor or ceiling with joist mold {3}
31.~.~.~.~.~ Utilizing spaced cores of unitary construction transverse to joist {1}
32  DF  .~.~.~.~.~.~> Cores directly abutting

DEFINITION

Classification: 249/31

(under subclass 28) Apparatus wherein the mold is partially or totally composed of U-shaped or dome-shaped cores made in a single piece for forming a floor or ceiling and a joist.

(1) Note. The cores must be a unitary structure before and after use.