Bifold mailer with return envelope
US5174494A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1991 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Oct 4, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D5/026
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A mailer type business form, an intermediate for the form, and a method of making the form are provided. The mailer type business form is constructed from a single ply sheet of paper and a small panel (less than one-quarter the size of the sheet) which cooperates with a quadrant of the sheet to provide a return envelope. The sheet is folded along orthogonal fold lines to provide four plies, a fifth ply being provided by the panel which cooperates with one of the plies to form the return envelope. The mailer is constructed by positively guiding the panel (preferably utilizing a tractor hole strip along one edge) into contact with predetermined adhesive strips on the single ply sheet, and then subsequently folding the sheet along the orthogonal fold lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.