US992629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dewatering and classifying ores.
Assignee: Colorado Iron Works Co
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Filing: 1909-09-14
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Granted: 1911-05-16
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Expires: 1929-09-14
Abstract
No abstract record available.
Inventors
- 👤 Randall P Akins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/48; B03B5/52
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) | 1914-05-15 | 1914-11-14 | 1915-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-05-15 | 1918-11-14 | 1919-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-05-15 | 1922-11-14 | 1923-05-16 | $7700.00 | Window Closed / Lapsed |