Arrow point with self lubricating collar
US6821221B2 · kind B2 · utility
4Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Oct 22, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B6/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An arrow point having a self lubricating collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.