US PATENT SUBCLASS 400 / 241.2
.~.~.~.~ Wherein ink is entrapped in ribbon material (e.g., microcapsules, micropores, etc.)

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
237  DF  .~ Ribbon, per se {4}
241  DF  .~.~ Particular ribbon material {3}
241.1  DF  .~.~.~ Synthetic material {1}
241.2.~.~.~.~ Wherein ink is entrapped in ribbon material (e.g., microcapsules, micropores, etc.)

DEFINITION

Classification: 400/241.2

Wherein ink is entrapped in ribbon material (e.g., microcapsules, micropores, etc.):

(under subclass 241.1) Subject matter wherein the substance includes a component having extremely small orifices or openings or chambers therein, the orifices or openings or chambers each holding a discrete quantity of ink*.