Retainer for maintaining a book in an open position
US4908912A · kind A · utility
17Cited by
4References
4Claims
0Family size
Inventor
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/206
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A retainer for maintaining a book in an open position having a retaining element with a U-shaped portion, a clip portion, and a reinforcement portion. The clip portion extends from the U-shaped portion and the reinforcement portion strengthens the intersection of the clip portion with the U-shaped portion. A book is inserted in an open position between the U-shaped portion and the clip portion. The entire retaining element is composed of a resilient, transparent material having a single piece construction. The U-shaped portion has two legs which, together with the clip portion, make contact with the book at three locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.