US PATENT SUBCLASS 604 / 375
.~.~.~.~ With additional chemical modifications (e.g., paper, chemical pulp, rayon, etc.)

Current as of: June, 1999
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604 /   HD   SURGERY

317  DF  MEANS AND METHODS FOR COLLECTING BODY FLUIDS OR WASTE MATERIAL (E.G., RECEPTACLES, ETC.) {5}
358  DF  .~ Absorbent pad for external or internal application and supports therefor (e.g., catamenial devices, diapers, etc.) {13}
367  DF  .~.~ Containing particular materials, fibers, or particles {6}
374  DF  .~.~.~ Cellulose or cellulosic materials {2}
375.~.~.~.~ With additional chemical modifications (e.g., paper, chemical pulp, rayon, etc.) {1}
376  DF  .~.~.~.~.~> Carboxy-radical containing

DEFINITION

Classification: 604/375

With additional chemical modification (e.g., paper, chemical pulp, rayon, etc.):

(under subclass 374) Subject matter in which the polysaccharide material has undergone chemical treatment to produce a chemical compound of cellulose having characteristics different than natural cellulose.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastics,

163.01+, for compositions containing cellulose or derivative thereof.

162, Paper Making and Fiber Liberation,

1+, for processes for the liberation of natural cellulose.

536, Organic Compounds, 30+, for cellulose derivatives.