Retractable stairs-like stand
US6055780A · kind A · utility
79Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | May 26, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H3/123
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A retractable stairs-like stand has rows of seats on moveable floor-bases arranged in a stair-like manner for use in an auditorium or stadium-like application. A variety of seating styles can be accommodated due to the retracted storage position used wherein the steps are shifted to all be in vertical alignment, and the seats are stored in a nested configuration with corresponding seats in vertical alignment to provide a more compact arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.