Patent US676679A successfully refreshed from Google Patents.
US676679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of separating metallic from rocky constituents of ores.
Assignee: Individual
•
Filing: 1899-04-10
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Granted: 1901-06-18
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Expires: 1919-04-10
Abstract
No abstract record available.
Inventors
- 👤 Francis Edward Elmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:54
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1904-06-17 | 1904-12-17 | 1905-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-06-17 | 1908-12-17 | 1909-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-06-17 | 1912-12-17 | 1913-06-18 | $7700.00 | Window Closed / Lapsed |