Animated balloons
US4778431A · kind A · utility
26Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1986 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Nov 14, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H2027/1075
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A balloon containing a volume of lighter than air gas sufficient to render it buoyant has attached to it self-adjusting expandable or collapsible spring-like member in order to counteract the buoyancy of the balloon and retain it at an essentially stationary vertical position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.