Closure
USD331877S · kind S · design
49Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.