US PATENT SUBCLASS 428 / 68
SHEET INCLUDING COVER OR CASING

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

68SHEET INCLUDING COVER OR CASING {6}
69  DF  .~> Filled with gas other than air; or under vacuum
70  DF  .~> Encased layer derived from inorganic settable ingredient
71  DF  .~> Foamed or expanded material encased
72  DF  .~> Including elements cooperating to form cells {1}
74  DF  .~> Noninterengaged fibered material encased (e.g., mat, batt, etc.) {1}
76  DF  .~> Complete cover or casing

DEFINITION

Classification: 428/68

(under the class definition) Product comprising a base sheet* with a distinct layer* of material enclosing all the edges and at least one nonthickness surface*.

(1) Note. The enclosing layer of material may either be unitary or may comprise a plurality of separate and distinct portions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

126+, for a sheet* having a fold at opposed marginal edges and forming an annular cover of the product.