Patent US689674A successfully refreshed from Google Patents.
US689674A
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Machine for extracting metal from ore.
Assignee: CALEB F BRYANT
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Filing: 1900-09-26
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Granted: 1901-12-24
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Expires: 1920-09-26
Abstract
No abstract record available.
Inventors
- 👤 Albert Isaiah Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:01
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/16; C25D17/28
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) | 1904-12-23 | 1905-06-24 | 1905-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-12-23 | 1909-06-24 | 1909-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-12-23 | 1913-06-24 | 1913-12-24 | $7700.00 | Window Closed / Lapsed |