US1219240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic controlling system for continuous agitation and transfer systems for treatment of ores.
Assignee: Colorado Iron Works Co
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Filing: 1915-10-07
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Granted: 1917-03-13
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Expires: 1935-10-07
Abstract
No abstract record available.
Inventors
- 👤 John Wm Bucher
- 👤 Randall P Akins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:59
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/20; B01J; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079
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) | 1920-03-12 | 1920-09-11 | 1921-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-03-12 | 1924-09-11 | 1925-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-03-12 | 1928-09-11 | 1929-03-13 | $7700.00 | Window Closed / Lapsed |