Cover with adhesive bridges in scored areas
US4371195A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1980 |
| Grant date | Feb 1, 1983 |
| Priority date | — |
| Expiry date | Jun 24, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D3/002
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved book cover structure of the general type having an integral backbone and front and back covers connected to the backbone via spaced parallel score lines to enable the front and back covers to flex relative to the backbone. A backbone strip of hot melt adhesive is secured on an inside face area of the backbone. Spacer means for positioning the outermost sheets in engagement with the backbone strip are provided and comprise cover strips of hot melt adhesive secured to inside surface areas of the front and back covers adjacent to the score lines with reduced area portions of the cover strips extending across the score lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.