US1675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in cotton-gins
Assignee: —
•
Filing: 1840-07-03
•
Granted: 1840-07-03
•
Expires: 1860-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:32
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/152; C01B33/154; D; D01; D01B; D01B1/00; D01B1/02; D01B1/04; D01B1/06
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) | 1843-07-03 | 1844-01-02 | 1844-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1847-07-03 | 1848-01-02 | 1848-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1851-07-03 | 1852-01-02 | 1852-07-03 | $7700.00 | Window Closed / Lapsed |