US PATENT SUBCLASS 428 / 182
.~.~.~ Parallel corrugations

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}
174  DF  .~ Nonplanar uniform thickness material {5}
179  DF  .~.~ Aligned or parallel nonplanarities {3}
182.~.~.~ Parallel corrugations {2}
183  DF  .~.~.~.~> With locally deformed crests or intersecting series of corrugations
184  DF  .~.~.~.~> Plural corrugated components {2}

DEFINITION

Classification: 428/182

(under subclass 179) Product wherein the nonplanarities are elongated and are arranged to extend generally in the same direction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, and 167, for a product embodying a component of varying thickness and including ribs and/or grooves.

178, for a product wherein a ribbed, uniform-thickness, component forms or cooperates to form closed cells*.