US PATENT SUBCLASS 430 / 218
.~.~.~.~ Identified nondye image forming developing agent, silver halide development accelerator or retarder, or dye image forming accelerator or retarder containing

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

199  DF  TRANSFER PROCEDURE BETWEEN IMAGE AND IMAGE LAYER, IMAGE RECEIVING LAYERS, OR ELEMENT CONTAINING AN IMAGE RECEIVING LAYER OR AN INGREDIENT FOR FORMING AN IMAGE RECEIVING LAYER {3}
202  DF  .~ Diffusion transfer process, element, or identified image receiving layers therefor {8}
211  DF  .~.~ Element or identified image receiving layers for dye image formation {1}
212  DF  .~.~.~ Element containing silver salt sensitizer or either element or image receiving layer for use therewith {8}
218.~.~.~.~ Identified nondye image forming developing agent, silver halide development accelerator or retarder, or dye image forming accelerator or retarder containing {1}
219  DF  .~.~.~.~.~> Silver halide developing retarder or antifoggant

DEFINITION

Classification: 430/218

Identified nondye image forming developing agent, silver halide development accelerator or retarder, or dye image forming accelerator or retarder containing:

(under subclass 212) Element containing a silver halide identified developing agent which is not an image forming dye or dye precursor, containing an identified ingredient functioning to accelerate, retard, or inhibit development of silver halide or containing an identified ingredient which effects the dye image density by accelerating or retarding the formation of a dye image forming compound or diffusion transfer rate of a diffusible dye image forming compound.

(1) Note. Included in this subclass are, e.g., auxiliary developing agents, antifoggants, silver halide development accelerators or retarders, dye solvents or gelatin softeners which accelerate dye transfer and color development accelerators.