US PATENT SUBCLASS 430 / 502
.~ Two or more radiation-sensitive layers containing other than that characterized by the composition of a single sensitive layer

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}
502.~ Two or more radiation-sensitive layers containing other than that characterized by the composition of a single sensitive layer {3}
503  DF  .~.~> Layers sensitive to different spectral regions {4}
508  DF  .~.~> Sensitive to portion only of visible spectrum or of widened spectral response
509  DF  .~.~> Sensitive layers differ in speed

DEFINITION

Classification: 430/502

Two or more radiation-sensitive layers containing other than that characterized by the composition of a single sensitive layer:

(under subclass 495.1) Subject matter containing plural

radiation-sensitive layers other than a single radiation-sensitive layer claimed, per se. and also claimed in conjunction with another sensitive layer which is not identified in more detail than nominal silver halide.

(1) Note. Patents not included in this subclass are placed below based on the first provided for feature claimed.

(2) Note. This and indented subclasses provide for patents wherein all claims recite plural radiation-sensitive layers whether these layers are identified or not.