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US1264509A
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US
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Concentrating apparatus.
Assignee: SOUTHERN ELECTRO-CHEMICAL Co
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Filing: 1914-11-06
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Granted: 1918-04-30
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Expires: 1934-11-06
Abstract
No abstract record available.
Inventors
- 👤 Ingenuin Hechenbleikner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:03
CPC Classifications
B; B01; B01D; B01D1/00; C; C01; C01B; C01B17/00; C01B17/69; C01B17/88; Y; Y10; Y10S; Y10S159/00; Y10S159/19
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) | 1921-04-29 | 1921-10-29 | 1922-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-04-29 | 1925-10-29 | 1926-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-04-29 | 1929-10-29 | 1930-04-30 | $7700.00 | Window Closed / Lapsed |