Pressureless tennis ball
US6030304A · kind A · utility
10Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1996 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Mar 12, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2039/003
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pressureless tennis ball comprises a novel core which is formed from a compound containing rubber and a plastomer defined as a copolymer of ethylene and one or more alkenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.