Set of stackable coasters
USD257419S · kind S · design
5Cited by
3References
1Claims
0Family size
Inventor
Key dates
| Filing date | Dec 7, 1977 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Oct 21, 1987 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.