US1056900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of desulfurizing ores and metals.
Assignee: AMERICAN ELECTRIC SMELTING AND ENGINEERING Co
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Filing: 1910-08-05
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Granted: 1913-03-25
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Expires: 1930-08-05
Abstract
No abstract record available.
Inventors
- 👤 Albert E Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:56
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/0006
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) | 1916-03-24 | 1916-09-23 | 1917-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-03-24 | 1920-09-23 | 1921-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-03-24 | 1924-09-23 | 1925-03-25 | $7700.00 | Window Closed / Lapsed |