Posting ladder
US7044270B1 · kind B1 · utility
9Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jun 30, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/186
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hook attachment for a ladder is provided and includes a pair of curved members, each of the curved members being formed in a tapered shape having a base portion of a first cross-sectional area and a tip portion of a second cross-sectional area smaller than the first cross-sectional area. A cross-sectional area between the base portion and the tip portion decreases in a substantially continuous manner in a direction from the base portion to the tip portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.