US PATENT SUBCLASS 524 / 16
.~.~.~.~ Bark or cork

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
9  DF  .~.~.~ Cellular material derived from plant or animal source DNRM other than: cotton, farinaceous meals or flours, blood, diatomaceous earth, chalk, or other fossilized matter {4}
16.~.~.~.~ Bark or cork

DEFINITION

Classification: 524/16

Bark or cork:

(under subclass 9) Subject matter wherein the cellular DNRM is bark or cork.

(1) Note. Bark is any portion of a stem or root of a tree outside of the cambrium circle.

(2) Note. Cork is the exterior layer of the bark of certain trees.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13+, for wood to which the bark or cork is still attached.