Expandable work tray for a step stool or ladder
US11299934B2 · kind B2 · utility
4Cited by
33References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Feb 14, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C1/393
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A step stool includes an expandable tray assembly. The expandable tray assembly has a fixed tray panel and a movable tray panel coupled to the fixed tray unit for movement relative to the fixed tray unit. The movable tray panel is illustratively movable between a collapsed position, arranged above the fixed tray panel, and an expanded position, arranged adjacent to the fixed tray panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.