US PATENT SUBCLASS 430 / 547
.~.~.~.~ Direct positive

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}
541  DF  .~ Identified radiation sensitive composition with color producing substance {1}
542  DF  .~.~ Silver compound sensitizer {2}
543  DF  .~.~.~ Coupler containing {12}
547.~.~.~.~ Direct positive

DEFINITION

Classification: 430/547

Direct positive:

(under subclass 544) Compositions which form a direct positive dye image, on exposure and development.

(1) Note. Included herein are fogged silver halide emulsion containing desensitizing agents.

SEE OR SEARCH THIS CLASS, SUBCLASS:

378, for process involving exposed compositions of this subclass.