US PATENT SUBCLASS 52 / 788.1
.~.~ Hermetically sealed, opaque or transparent panel

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

782.1  DF  COMPOSITE PREFABRICATED PANEL INCLUDING ADJUNCTIVE MEANS {7}
783.1  DF  .~ Sandwich or hollow with sheet-like facing members {13}
788.1.~.~ Hermetically sealed, opaque or transparent panel

DEFINITION

Classification: 52/788.1

Hermetically sealed, opaque or translucent panel:

(under subclass 783.10) Structure which includes a perfectly closed or airtight panel formed of a pair of spaced sheet-like, non-transparent members.

SEE OR SEARCH THIS CLASS, SUBCLASS:

786.1+, for parallel transparent panes (i.e., double glass panel, which may be hermetically sealed).