US PATENT SUBCLASS 525 / 54.31
.~.~.~ Carbohydrate containing polymer is derived from starch, or starch containing flour or meal

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
54.3  DF  .~.~ Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer {1}
54.31.~.~.~ Carbohydrate containing polymer is derived from starch, or starch containing flour or meal {1}
54.32  DF  .~.~.~.~> Carbohydrate containing polymer derived from acrylonitrile

DEFINITION

Classification: 525/54.31

Carbohydrates containing polymer is derived from starch, or starch containing flour or meal:

(under subclass 54.3) Subject matter wherein the carbohydrate is starch, farinaceous flour or meal or a derivative thereof.

SEE OR SEARCH CLASS

524, Synthetic Resins or Natural Rubbers,

47, for the definition of a starch or derivative or farinaceous flour or meal.