US PATENT SUBCLASS 428 / 537.5
.~.~ Of paper

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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
532  DF  .~ Of carbohydrate {3}
537.5.~.~ Of paper {1}
537.7  DF  .~.~.~> Next to layer of metal salt (e.g., plasterboard, etc.)

DEFINITION

Classification: 428/537.5

Of paper:

(under subclass 532) Product in which the carbohydrate layer is paper.

(1) Note. Cardboard, pasteboard and water-laid pulp are considered exemplary of paper.

SEE OR SEARCH CLASS

162, Paper Making and Fiber Liberation, for a multi-ply paper web or sheet which is produced by a process of that class; and see (9) Note, under the definition for

411.1, of this class (428).