Tennis ball
US10918913B2 · kind B2 · utility
2Cited by
49References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A tennis ball may include a spherical hollow elastomeric core having a specific gravity of less than 1 and a thickness of at least 4.5 mm and a textile layer covering the spherical hollow core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.