Method and apparatus for producing two-sided carbonless copies of both sides of an original document
US5197922A · kind A · utility
14Cited by
164References
37Claims
0Family size
Inventor
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/124
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A single sheet of paper is delineated into two or more panels, and is coated with carbonless treatment so that information entered on both sides of one of the panels is reproduces onto the other panel(s). The use of carbonless CB and CF, and carbonless SC coatings is disclosed. Methods of making and using the carbonless paper are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.