Tennis ball having a core with internal material shift lines
US10493327B2 · kind B2 · utility
3Cited by
43References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Mar 14, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A tennis ball may include a spherical hollow core having an inner surface including material shift lines and a textile outer layer over and about the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.