Display tree with bubble trunk
US6811836B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 20, 1998 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Oct 8, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41G1/007
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A display representing a tree, such as a Christmas tree, has a trunk made of a hollow tube and held by a base in substantially vertical position. A liquid, such as water, is placed in the tube and an air supply in or near the bottom of the tube generates bubbles that rise through the tube. The tube and bubbles therein are preferably illuminated to add to the effectiveness of the display. Branches are secured to the trunk tube and extend outwardly therefrom to provide tree foliage and give the display the appearance of a tree or support foliage, such as in the form of a garland, which provides the tree foliage and gives the display the appearance of a tree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.