US11620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corn-sheller
Assignee: —
•
Filing: —
•
Granted: 1854-08-29
•
Expires: 1871-08-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
A; A01; A01F; A01F11/00; A01F11/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1857-08-28 | 1858-02-27 | 1858-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1861-08-28 | 1862-02-27 | 1862-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1865-08-28 | 1866-02-27 | 1866-08-29 | $7700.00 | Window Closed / Lapsed |