Patent US3292A successfully refreshed from Google Patents.
US3292A
Expired / Lapsed
US
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Machine fob breaking and screening coal
Assignee: —
•
Filing: —
•
Granted: 1843-10-06
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Expires: 1860-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:28
CPC Classifications
B; B02; B02C; B02C4/00; B02C4/10; B02C4/18; B02C4/22; A; A23; A23L; A23L7/00; A23L7/10; A23L7/115
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) | 1846-10-05 | 1847-04-06 | 1847-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1850-10-05 | 1851-04-06 | 1851-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1854-10-05 | 1855-04-06 | 1855-10-06 | $7700.00 | Window Closed / Lapsed |