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USD307290S · kind S · design
2Cited by
7References
1Claims
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Key dates
| Filing date | Nov 25, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Apr 17, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.