US PATENT SUBCLASS 428 / 183
.~.~.~.~ With locally deformed crests or intersecting series of corrugations

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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  DF  .~.~.~ Parallel corrugations {2}
183.~.~.~.~ With locally deformed crests or intersecting series of corrugations

DEFINITION

Classification: 428/183

(under subclass 182) Product wherein the peaks of the corrugations are indented at spaced zones therealong or wherein there are two series of corrugations in one layer with those of one series crossing or extending between and at an angle to those of the second series.

SEE OR SEARCH THIS CLASS, SUBCLASS:

178, for a product wherein the deformations of the peaks of the corrugations engage an adjacent layer and thereby form closed cells*.

180, for a product wherein crossing ribs or grooves form a waffle pattern.

185, for a product wherein ribs or grooves in respective components of a composite web cross in plan projection.