Chromatography column closure or similar article
USD309498S · kind S · design
2Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1987 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Jul 24, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.