Handset for interactive learning
USD715796S1 · kind S1 · design
3Cited by
22References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2028 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.