US PATENT SUBCLASS 503 / 207
.~ Having nonreactant particles of defined size

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}
207.~ Having nonreactant particles of defined size

DEFINITION

Classification: 503/207

Having nonreactant particles or defined size:

(under subclass 200) Subject matter in which the recording material contains particles, other than merely color-former particles or developer particles, which particles are designated as having a particular relative or absolute size.

(1) Note. The size-designated particles often are larger than any reactive particles in the recording material, so

that they may serve to protect reactive particles from unwanted contact, e.g., "stilt" particles, etc.