US PATENT SUBCLASS 52 / 406.1
.~ Enveloped-type filler

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

404.1  DF  INSULATING INSERT; E.G., FILLER IN CAVITY IN PRECONSTRUCTED OR CAST STRUCTURE {7}
406.1.~ Enveloped-type filler {2}
406.2  DF  .~.~> Self-contained insulating unit
406.3  DF  .~.~> Insert containing chamber

DEFINITION

Classification: 52/406.1

Enveloped-type filler:

(under subclass 404.1) Insulating insert wherein the filler body of insulating material is covered by means surrounding at least four sides thereof.