Keypad with key pairs
US8194041B2 · kind B2 · utility
5Cited by
9References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | May 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2223/0345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keypad has a plurality of keys. The plurality of keys includes one or more key pairs. Each of the one or more key pairs includes physically coupled first and second keys. The physically coupled first and second keys are configured to be actuated independently of each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.