US PATENT SUBCLASS 527 / *
SYNTHETIC RESINS (Class 520, Subclass 1)


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

*SYNTHETIC RESINS (Class 520, Subclass 1) {6}
100  DF  .~> FROM REACTANT WHICH IS A CELLULAR MATERIAL DERIVED FROM PLANT OR ANIMAL SOURCE AND IS OTHER THAN DIATOMACEOUS EARTH, BLOOD, COTTON, OR FARINACEOUS FLOUR, E.G., CITRUS PULP, WALNUT SHELL FLOUR, ETC. {2}
200  DF  .~> FROM PROTEIN OR BIOLOGICALLY ACTIVE POLYPEPTIDE REACTANT {4}
300  DF  .~> FROM CARBOHYDRATE OR DERIVATIVE AS A REACTANT {8}
400  DF  .~> FROM LIGNIN, TANNIN, OR DERIVATIVE REACTANT {2}
500  DF  .~> FROM COAL OR BITUMINOUS MATERIAL, EXTRACT OR DERIVATIVE THEREOF, OR FATTY STILL RESIDUE REACTANT {2}
600  DF  .~> FROM NATURAL RESIN OR DERIVATIVE REACTANT EXCLUDING TALL OIL OR DERIVATIVE {3}