US36020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in corn-planters
Assignee: —
•
Filing: —
•
Granted: 1862-07-29
•
Expires: 1879-07-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:33
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/06
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) | 1865-07-28 | 1866-01-27 | 1866-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1869-07-28 | 1870-01-27 | 1870-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1873-07-28 | 1874-01-27 | 1874-07-29 | $7700.00 | Window Closed / Lapsed |