Variable capacity binder
US7063477B2 · kind B2 · utility
10Cited by
10References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2003 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42F13/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A variable capacity binder including an outer cover and a binding mechanism including a plurality of spaced rings, each ring being shaped to be received through a hole of a piece of paper to couple the paper to the binding mechanism. Each ring is non-symmetrical with respect to at least one axis and has a longitudinal axis. The binding mechanism is pivotally coupled to the cover such that the longitudinal axis of each ring can be pivoted relative to the spine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.