Three-dimensional artificial tree
US6936314B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 18, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G33/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An expandable tree-shaped device is formed from a sheet of material which includes a central apex and a plurality of spaced apart spiral strips extending therefrom, with the spiral strips being substantially coaxial to the central apex and to one another. The central apex and the spiral strips, in the operative position, are positioned in a vertically spaced, tiered array, with the central apex at an uppermost position such that the tiered array is configured to have a generally conical tree-shape. A plurality of connecting segments join each spiral strip or tier of the array to a next adjacent spiral strip or tier of the array to form a unitary structure. The width of each spiral strip increases proportionately with the increase in radial distance from the central point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.