Wire-bound product and method for manufacturing the same
US8550501B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 4, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D5/042
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A wire-bound product using a double type laminated paper board and a method for manufacturing the same are disclosed. The wire-bound product employs a structure in which inner paper sheets are turned over in the rightward and leftward directions on front plates of a frame, instead a structure in which a plurality of inner paper sheets is turned over toward the rear surface of a frame, thereby allowing a user to see both surfaces of the inner paper sheets. Further, rear plates of the frame are inserted into various positions of a spring to support the front plates, thereby allowing a standing angle of the front plates of the frame to be adjustable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.