Adjustable base extender for a ladder
US9879481B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
Inventor
Key dates
| Filing date | Apr 23, 2010 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Feb 2, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A base extending mechanism is provided for a ladder in the form of pivotable lower leg sections which can be independently rotated outwards to provide a wider ladder base. This extension of the ladder base is complementary to and supported by a compatible ladder levelling mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.