Open center returning flying polygon
US6837813B2 · kind B2 · utility
6Cited by
8References
26Claims
0Family size
Inventor
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/18
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A throwable toy includes an open center polygon defining a closed ring having upper and lower surfaces including connected linear segments and a plurality of shortened, generally rounded, rearward-projecting members extending outwardly and downwardly from said ring along and aligned with the axes of said linear segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.