US PATENT SUBCLASS 604 / 376
.~.~.~.~.~ Carboxy-radical containing

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  DF  .~.~.~.~ With additional chemical modifications (e.g., paper, chemical pulp, rayon, etc.) {1}
376.~.~.~.~.~ Carboxy-radical containing

DEFINITION

Classification: 604/376

Carboxy radical containing:

(under subclass 375) Subject matter wherein the chemically modified cellulose or cellullose material contains a carboxyl radical.

(1) Note. Patents in this subclass disclose the modified chemical cellulose as carboxymethyl or carboxyethyl cellulose or a sodium salt of either or other carboxy derivations of cellulose material (e.g., cellulose gum, sodium cellulose glycolate).

SEE OR SEARCH THIS CLASS, SUBCLASS:

368, for gel-like materials containing carboxy radical cellulose compounds.