US PATENT SUBCLASS 52 / 309.11
.~.~.~.~ Tie between exterior faces
Current as of:
June, 1999
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52 /
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STATIC STRUCTURES (E.G., BUILDINGS)
309.1
DF
WITH SYNTHETIC RESINOUS COMPONENT
{4}
309.4
DF
.~ Foam {4}
309.8
DF
.~.~ Adjacent nonporous layer {2}
309.9
DF
.~.~.~ Nonporous exterior faces {1}
309.11
.~.~.~.~ Tie between exterior faces
DEFINITION
Classification: 52/309.11
Structure under 309.9 wherein the exterior, nonporous components are tied together by an element distinct from the porous, foam-like component therebetween.