Crystal ball structure with changeable ball appearance
US5853824A · kind A · utility
7Cited by
7References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jul 15, 1996 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Jul 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F19/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A crystal ball structure with changeable ball appearance having a base, a fixing base and a transparent box. A nose portion is used to combine the base and the fixing base to form an integral body that is separable from each other. An open end of the transparent box is connected with the rubber plug base. Accordingly, the base may be easily separated from the fixing base so that a card may also be inserted into or removed from the open end of the transparent box, thus the ball appearance is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.