US PATENT SUBCLASS 52 / 663-- .~.~ Discrete component; wholly internal; e.g., architectural grille

US PATENT SUBCLASS 52 / 663
.~.~ Discrete component; wholly internal; e.g., architectural grille

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

633	DF	OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR {12}
660	DF	.~ Fabric or lattice; e.g., indeterminate grating {7}
663		.~.~ Discrete component; wholly internal; e.g., architectural grille

DEFINITION

Classification: 52/663

(under subclass 660) Structure in which there is at least one separate member surrounded by other members, i.e., components such as squares, triangles or circles arranged side-by-side to form a planar surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302.1+, for structures having a vent from the interior thereof to the ambient and see search notes for other constructions having a passage from its interior to the ambient.

606+, for a masonry module having a through passage a plurality of which may be arranged to form an openwork.