US PATENT SUBCLASS 52 / 302.1
WALL, CEILING, FLOOR, OR ROOF DESIGNED FOR VENTILATION OR DRAINAGE

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

302.1WALL, CEILING, FLOOR, OR ROOF DESIGNED FOR VENTILATION OR DRAINAGE {5}
302.2  DF  .~> For a grain bin
302.3  DF  .~> With the vent or drain entirely along at least one substantial dimension (e.g., length, not thickness) {1}
302.5  DF  .~> For a pole or post
302.6  DF  .~> Embedded flashing
302.7  DF  .~> Including a plug for drain or vent

DEFINITION

Classification: 52/302.1

WALL, CEILING, FLOOR, OR ROOF DESIGNED FOR VENTILATION OR DRAINAGE:

(under the class definition) Structure in which a static structure, or a component, is specifically fabricated or modified to convey a fluid (e.g., a wall with a passage for air or water).

SEE OR SEARCH THIS CLASS, SUBCLASS:

12+, for a cover with external water receiver at eave or valley; e.g., gutter.

95, for a roof with gable or eave structure and conduit or passage means for a subjacent area.

131+, for a grave vault with fluid ports.

169.5, for a drain or vent exterior to the building foundation perimeter.

198+, for an enclosure with a port from the ambient to an enclosed usable space. 209, for a door or window opening and a drain or vent for the reveal area.

220.1+, for a service duct within a barrier.

310, for a construction with a feature for removing excess moisture from cast material.

311.3, for grill-work in which there is a defined color, thickness variation, dissimilar characteristics, or irregular periphery of components.

503+, for a construction of plural modules forming a through fluid passage.

508, for dissimilar abutted facer sections which together form unoccupied spaces within barrier.

514.5, for a construction with means for injecting or connecting with grouting means.

533+, for lapped multiplanar surfacing having a joint with fluid handling feature.

553, for a similar surfacing with space or space forming feature.

606+, for an individual unit with a traversing passage.

633+, for openwork; i.e., a surface forming structure which exhibits open uniform through passages or openings extending from one face to another; e.g., trusses, grilles, particularly subclass 663 for a barrier having through passages extending from one side to another formed by stacked discrete components.

SEE OR SEARCH CLASS 126, Stoves and Furnaces,

633, for a wall or floor constructed with a passage for solar heated fluid to warm a building.

138, Pipes and Tubular Conduits,

156+, for a duct.

405, Hydraulic and Earth Engineering,

36+, for drainage devices.

454, Ventilation,

254+, for a specific inlet, outlet, or flow controlling device (damper, louver, etc.) to circulate and exchange air from one area to another.