Compact truck tailgate and general purpose utility ladder
US7516997B2 · kind B2 · utility
30Cited by
42References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Nov 19, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D33/0273
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
According to an exemplary embodiment, and apparatus includes: a non-collapsible single unit stair including: a pair of opposing side rails supporting at least a top step and a bottom step; and a rotator unit including a lower portion secured to a substantially horizontal surface, and an upper portion mounting the non-collapsible single unit stair, wherein the lower portion and the upper portion are rotatable with respect to one another about an axis oriented substantially perpendicular to the substantially horizontal surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.