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US28576A
Expired / Lapsed
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Improvement in cultivators
Assignee: Individual
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Filing: —
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Granted: 1860-06-05
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Expires: 1877-06-05
Abstract
No abstract record available.
Inventors
- 👤 Vines Harwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:46
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/04; A01B3/06; A01B3/08; A01B39/00; A01B39/02; A01B39/04
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) | 1863-06-05 | 1863-12-05 | 1864-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-06-05 | 1867-12-05 | 1868-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-06-05 | 1871-12-05 | 1872-06-05 | $7700.00 | Window Closed / Lapsed |