Twirling disc
US4356660A · kind A · utility
15Cited by
4References
8Claims
0Family size
Inventor
Key dates
| Filing date | Aug 10, 1981 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Aug 10, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A twirling disc adapted to be used by either a novice twirler or an expert twirler. The disc is provided with a pliable covering on one of its faces. The opposite face is provided with a hard covering. A novice twirler effects twirling of the disc by applying his twirling finger to the pliable covered face of the disc. An expert twirler engages his twirling finger with the face of the disc having a hard covering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.