US1542966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical apparatus
Assignee: Freeport Minerals Corp
•
Filing: 1919-01-28
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Granted: 1925-06-23
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Expires: 1939-01-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel John Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:34
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/10; F27D3/0025; F27B; F27B3/00; F27B3/10; F27B3/18; F27D2003/0034; F27D2003/0059; F27D2003/105; F27D3/12; F27D2003/125; F27D3/08; F27D5/00; F27D5/0068
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) | 1928-06-22 | 1928-12-22 | 1929-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-06-22 | 1932-12-22 | 1933-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-06-22 | 1936-12-22 | 1937-06-23 | $7700.00 | Window Closed / Lapsed |