Annular fitness ball
US7306550B2 · kind B2 · utility
10Cited by
10References
4Claims
0Family size
Inventor
Key dates
| Filing date | May 2, 2006 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/62
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
As annular fitness ball has an annular body and an annular air-filled space that is placed inside the annular body. The annular body has an annular surface and a central hole is designed on the external side of the annular body. The cross-sectional diameter of the annular air-filled space must be larger than the cross-sectional diameter of the central hole. Protruding ears extend outwardly from opposite sides of the annular body. Pull strings extend through holes formed in the producing ears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.