Paper block or pad and a method of producing it
US4667983A · kind A · utility
9Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Jul 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D1/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A block or pad comprising a folder with two covers (1,2) joined to each other by a spine (3), on the inside of which a thermosetting binder in the form of a strip (6) has been attached and also comprising a sheaf of papers (8), one side edge of which is joined to the inside of the spine via the strip. At least some of the sheets joined to the inside of the spine (3) are provided with weakening lines (7) parallel to, and at a small distance from portions of the sheet which remain joined to the strip. The invention also relates to a method of producing the block or pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.