Safety ladder
US10900282B2 · kind B2 · utility
2Cited by
35References
4Claims
0Family size
Inventor
Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Dec 21, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/486
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety ladder for accessing the rooftop of a building structure is disclosed. In a version, the safety ladder comprises a first and second side rail extending between a lower free end and an upper free end; a plurality of horizontal rungs vertically disposed between the side rails; and a hinged roof portion operably positioned between the first and second side rails near the upper free end terminating at a top end, wherein the hinged roof portion rotates about a hinge axis between a default position and a forward rooftop position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.