US PATENT SUBCLASS 462 / 69
.~ Transfer leaf (e.g., carbon paper)

Current as of: June, 1999
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462 /   HD   BOOKS, STRIPS, AND LEAVES FOR MANIFOLDING

66  DF  LEAF {2}
69.~ Transfer leaf (e.g., carbon paper) {1}
70  DF  .~.~> Marginal or indicia feature

DEFINITION

Classification: 462/69

Transfer leaf* (e.g., carbon paper):

(under subclass 69) Subject matter wherein the leaf* carries a pigment type material which under mechanical pressure is transferred to a receiving sheet in contact therewith during manifolding*.

(1) Note. The material typically coated on the leaf is a pigment containing the element carbon, the leaf being referred to as "carbon paper" or a "carbon".

SEE OR SEARCH CLASS

427, Coating Processes,

146+, transfer or copy sheet making, especially subclass 153 carbon paper type.

428, Stock Material or Miscellaneous Articles, appropriate subclasses, especially

211, for structurally defined web including paper layer, subclass 204 for structurally defined web with intermediate layer containing particulate material (e.g., pigment, etc.) and subclasses 488.1 and 488.4 for layered cellulosic paper with pigment or dye. 503, Record Receiver Having Plural Leaves or a Colorless Color Former, Method of Use, or Developer Therefor, appropriate subclasses, especially

203, for a duplicating master.