System for tracking motion of game articles
US7900921B1 · kind B1 · utility
15Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2007 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jun 28, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2009/245
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A method and apparatus for displaying the track of a game article moving on a play surface, the game article directing energy to said play surface to energize energy reactive material and provide a visually observable track display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.