US PATENT SUBCLASS 428 / 173
.~.~.~ With partial filling of valleys on outer surface

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

98  DF  STRUCTURALLY DEFINED WEB OR SHEET (E.G., OVERALL DIMENSION, ETC.) {20}
156  DF  .~ Including variation in thickness {7}
172  DF  .~.~ Composite web or sheet {1}
173.~.~.~ With partial filling of valleys on outer surface

DEFINITION

Classification: 428/173

(under subclass 172) Product in which an outer surface of the composite* sheet or web has dents or depressions and there is an extraneous material in at least one such dent or depression, lying beneath the topmost rise of the walls defining such dent or depression.