US PATENT SUBCLASS 52 / 721.1
.~ Stone-like component (e.g., concrete, etc.)

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

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
721.1.~ Stone-like component (e.g., concrete, etc.) {2}
721.2  DF  .~.~> Upright {3}
724.1  DF  .~.~> Having feature resisting transverse loading (e.g., beam) {4}

DEFINITION

Classification: 52/721.1

Stone-like Component (e.g., concrete, etc.):

(under subclass 720.1) Structure which includes as a component, stone or a settable material (e.g., concrete, plaster, asphalt, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

223.1+, for a "prestressed" structure, often elongated concrete members.

251+, for a cast stone-like member forming an intersection.

299+, for a concrete type footing.

596+, for a stone-like module (e.g., concrete block).

730.2, for a metallic rod (e.g., concrete reinforcement).