Core barrel retracting case
USD664566S1 · kind S1 · design
5Cited by
55References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2011 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Jul 31, 2026 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.