US PATENT SUBCLASS 428 / 449
.~.~.~ Paper as both adjacent layers

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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
446  DF  .~ Of silicon containing (not as silicon alloy) {6}
448  DF  .~.~ As intermediate layer {1}
449.~.~.~ Paper as both adjacent layers

DEFINITION

Classification: 428/449

(under subclass 448) Product in which each of the other layers comprises paper*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

453, for a product in which sodium silicate is next to a cellulosic layer and may act as an adhesive therefor.