US1545582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for the reduction of ores
Assignee: COBB ELECTRO REDUCTION Corp
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Filing: 1922-08-05
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Granted: 1925-07-14
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Expires: 1942-08-05
Abstract
No abstract record available.
Inventors
- 👤 Cobb Bayard Geekie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:55
CPC Classifications
C; C22; C22B; C22B4/00; C22B4/08
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) | 1928-07-13 | 1929-01-12 | 1929-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-07-13 | 1933-01-12 | 1933-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-07-13 | 1937-01-12 | 1937-07-14 | $7700.00 | Window Closed / Lapsed |