Deep water flotation devices
US4482590A · kind A · utility
15Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1983 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Aug 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Novel macrospheres having improved resistance to implosion under hydrostatic pressure. The macrospheres are useful in buoyancy materials and devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.