Foldable ladder
US10731413B2 · kind B2 · utility
1Cited by
87References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/082
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A foldable ladder has a first ladder portion and a second ladder portion hingedly attached to the first ladder portion by a pair of hinge mechanisms. Each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween. The hinge mechanism has a locking pin to lock the first and second ladder portions at an angular position. Each rung is connected to a column by a connector assembly having first and second release buttons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.