US1027110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for treating ore.
Assignee: Dwight & Lloyd Metallurgical Co
•
Filing: 1910-02-17
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Granted: 1912-05-21
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Expires: 1930-02-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Dwight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:43
CPC Classifications
F; F27; F27B; F27B21/00; F27B21/06
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) | 1915-05-21 | 1915-11-20 | 1916-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-05-21 | 1919-11-20 | 1920-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-05-21 | 1923-11-20 | 1924-05-21 | $7700.00 | Window Closed / Lapsed |