US PATENT SUBCLASS 503 / 208
.~ Having constituent defined in terms of melting temperature

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}
208.~ Having constituent defined in terms of melting temperature

DEFINITION

Classification: 503/208

Having constituent defined in terms of melting temperature:

(under subclass 200) Subject matter wherein a composition which makes up part of the recording material has, as one of its constituents, a compound or mixture or macromolecule which is characterized by its melting temperature.

(1) Note. The recording material included herein generally are those designed for color development in response to localized heating, for example, by an electric stylus.