US PATENT SUBCLASS 430 / 639
.~.~ Carbohydrate or derivative containing

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

495.1  DF  RADIATION SENSITIVE PRODUCT {7}
564  DF  .~ Silver compound sensitizer containing {18}
639.~.~ Carbohydrate or derivative containing {2}
640  DF  .~.~.~> Gelatin or derivative containing
641  DF  .~.~.~> Cellulose or derivative, e.g., regenerated cellulose, etc.

DEFINITION

Classification: 430/639

Carbohydrate or derivative containing:

(under subclass 564) Subject matter containing a carbohydrate or its derivative.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

98+, for colloid systems of continuous or semicontinuous solid phase with discontinuous liquid phase (gels, pastes, flocs, coagulates) or agents for such systems or making or stabilizing such systems or agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.