Floor number display at landing and in car, informative to elevator passengers
US6997288B2 · kind B2 · utility
30Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jan 14, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B3/023
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Floor number displays informative to the elevator passengers at the landing and in the elevator car when the passengers issue destination calls to the elevator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.