US PATENT SUBCLASS 430 / 239
.~.~.~.~ Using identified nondye image forming developing agent, silver development accelerator or retarder, or dye image formation accelerator or retarder

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}
235  DF  .~.~ Dye image formation process {1}
236  DF  .~.~.~ Using silver salt sensitizer {4}
239.~.~.~.~ Using identified nondye image forming developing agent, silver development accelerator or retarder, or dye image formation accelerator or retarder {1}
240  DF  .~.~.~.~.~> Development retarder or antifoggant

DEFINITION

Classification: 430/239

Using identified nondye image forming developing agent, silver development accelerator or retarder, or dye image formation accelerator or retarder:

(under subclass 236) Processes using an identified developing agent which is not an image forming dye or dye precursor, using an identified ingredient which effects dye image density by accelerating or retarding the formation of a dye image forming compound or the diffusion transfer rate of a diffusible dye image forming compound or employing an identified ingredient which accelerates, retards, or inhibits development of a silver halide.