Golf club head
US6776726B2 · kind B2 · utility
155Cited by
8References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | May 28, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf club head comprises a ball striking face provided with a central region having a surface hardness Hc and a peripheral region surrounding the central region and having a surface hardness Hp less than the surface hardness Hc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.