EP 0391293 A3 19910821 - SINGLE PAPER SHEET FORMING A TWO-SIDED COPY OF INFORMATION ENTERED ON BOTH SIDES THEREOF
Title (en)
SINGLE PAPER SHEET FORMING A TWO-SIDED COPY OF INFORMATION ENTERED ON BOTH SIDES THEREOF
Publication
Application
Priority
- US 33418389 A 19890406
- US 43618989 A 19891113
- US 48468690 A 19900223
Abstract (en)
[origin: EP0391293A2] A single sheet (10,60) of paper is divided into at least original and copy panels by fold line(s) (20,70). Information entered on the two, front and back surfaces of the original panel are reproduced on the two surfaces of the copy panel by carbonless copy treatments. In one embodiment (Fig.1-3), the original panel is fully coated or partially coated with carbonless CB treatment, on both surfaces, and the copy panel is fully coated or partially coated with carbonless CF treatment. In a variation of this embodiment, the original panel is not coated, and the copy panel is coated in selected areas with carbonless SC treatment. A booklet employing this carbonless copy sheet in strip form is disclosed. In a second embodiment (Fig.4-6), the original panel is not coated, an image-transferring panel is fully coated on both surfaces with carbonless CB treatment, and the copy panel is fully coated with carbonless CF treatment. In a variation of this embodiment, the image-transferring panel is formed of a separate sheet of paper.
IPC 1-7
IPC 8 full level
B41M 5/124 (2006.01)
CPC (source: EP)
B41M 5/124 (2013.01)
Citation (search report)
- [YD] EP 0265250 A2 19880427 - THOMPSON GARY J
- [Y] DE 1937856 A1 19710204 - PELIKAN WERKE WAGNER GUENTHER [DE]
- [Y] US 4126334 A 19781121 - VAN MALDERGHEM EDMUND G
- [Y] FR 2121293 A5 19720818 - TRADING C S LTD
Designated contracting state (EPC)
AT DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0391293 A2 19901010; EP 0391293 A3 19910821; AU 5241190 A 19901011; AU 636336 B2 19930429; CA 2013875 A1 19901006
DOCDB simple family (application)
EP 90106248 A 19900331; AU 5241190 A 19900330; CA 2013875 A 19900404