Self-replicating duplex forms
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United States of America Patent
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-
Feb 28, 1995
Issued Date -
N/A
app pub date -
Jun 15, 1993
filing date -
Apr 6, 1989
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Improvements to self-replicating duplex forms are disclosed. Generally, a single sheet of paper is divided into original and copy panels by fold line, and carbonless coatings are applied to the panels so that information entered on the two, front and back surfaces of the original panel are reproduced on the two surfaces of the copy panel. (Group 1) An endorsable carbonless CB coating is applied to the original panel, either at the mill or on-press. A carbonless CF coating is applied to the copy panel so that the coated copy panel is substantially the same thickness as the coated original panel. Specific areas for filling out information on the original panel are offset, from front-to-back, and methods of checking this offset are disclosed. The copy panel is tinted a dissimilar base color from the original panel. (Group 2) The original and copy panels can be formed separately, and joined into a single 'virtual' sheet. (Group 3) The original and copy panels can be formed of a single sheet of CF C2S paper stock. A separate, intermediate transfer panel having a CB-coated surface is interposed between the original and copy panels to effect two-sided reproduction. (Group 4) The form can be of laminated construction of off-the-shelf carbonless paper stock to obtain the coating arrangements of the various configurations.
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