US PATENT SUBCLASS 430 / 389
.~.~.~.~.~ Substituted at coupling position with other than hydrogen

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

357  DF  COLOR IMAGING PROCESS {11}
374  DF  .~ Using identified radiation sensitive composition in the formation of color image {1}
375  DF  .~.~ Silver compound sensitizer {3}
376  DF  .~.~.~ And coupler {9}
388  DF  .~.~.~.~ Identified yellow dye color {1}
389.~.~.~.~.~ Substituted at coupling position with other than hydrogen

DEFINITION

Classification: 430/389

Substituted at coupling position with other than hydrogen:

(under subclass 388) Processes involving use of couplers containing a group other than hydrogen attached to the coupling position which is removed during processing, usually two-equivalent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

557, for radiation sensitive compositions used in this process.