US PATENT SUBCLASS 428 / 704
.~ Of B, N, P, S, or metal-containing material


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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
704.~ Of B, N, P, S, or metal-containing material


DEFINITION

Classification: 428/704

(under subclass 411.1) Of B, N, P, S, or metal-containing material: Subject matter wherein the composite contains boron, phosphorus, or sulfur in free or combined organic form, an organic nitrogen compound or an organic metal compound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

304.4+, for a composites material containing elemental nitrogen or another gas.

457+, and 615+, for composites having a layer of free metal.

CROSS-REFERENCE ART COLLECTIONS

The following subclasses are collections of published disclosures pertaining to various specified aspects of the stock material art which aspects do not form appropriate bases for subclasses in the foregoing classification (i.e., subclasses superior hereto in the schedule), wherein original copies of patents are placed on the basis of the structure or chemical composition of a layer* or layers*. These subclasses assist a search based on remote function or physical characteristic of the stock material and may be of further assistance to the searcher, either as a starting point in searching this class or as an indication of further related fields of search inside or outside the class.Thus, there is here provided a further path of access for retrieval of a limited number of types of disclosures.

(1) Note. Disclosures are placed in these subclasses for their value as references and as leads to appropriate main or secondary fields of search, without regard to their original classification or their claimed subject matter. (2) Note. The disclosures found in the following subclasses are examples, only, of the indicated subject matter, and in no instance do they represent the entire extent of the prior art.