US PATENT SUBCLASS 503 / 202
.~ Color developed by mere decomposition of color-former

Current as of: June, 1999
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503 /   HD   RECORD RECEIVER HAVING PLURAL INTERACTIVE LEAVES OR A COLORLESS COLOR FORMER, METHOD OF USE, OR DEVELOPER THEREFOR

200  DF  HAVING A COLORLESS COLOR-FORMER, DEVELOPER THEREFOR, OR METHOD OF USE {16}
202.~ Color developed by mere decomposition of color-former

DEFINITION

Classification: 503/202

Color developed by mere decomposition of color-former:

(under subclass 200) Subject matter in which the color-former is such that breaking up the color-former molecule) (e.g., by ionization, etc.) is sufficient to form a color without the need for the color-former molecule or fragment of it to react with another molecule.