Two-sided, self-replicating forms
US5248279A · kind A · utility
Inventors
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/124
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Improvements and alternate embodiments for two-sided, self-replicating forms are described. Form sets having two single sheets, each sheet delineated into two panels, making three two-sided copies of a two-sided original are described with fully-coated carbonless coatings and with patterned carbonless coatings. A form set having two single sheets, each sheet delineated into two panels, making four two-sided copies, two of which have original writing on one surface, is described. A single sheet form, delineated into two panels, making two two-sided copies, each of which has original writing on one surface, is described. A single sheet form, delineated into an original and a copy panel, making a two-sided copy of an original having original writing on both surfaces is described. A form set having a single sheet delineated into an original un-coated panel and a CF-coated copy panel, and employing a separate CB-coated image-transferring sheet is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.