Patent US830644A successfully refreshed from Google Patents.
US830644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain-drill.
Assignee: Individual
•
Filing: 1904-02-05
•
Granted: 1906-09-11
•
Expires: 1924-02-05
Abstract
No abstract record available.
Inventors
- 👤 Frank E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:04
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/06; A01C5/062; A01C5/064
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) | 1909-09-10 | 1910-03-12 | 1910-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-10 | 1914-03-12 | 1914-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-10 | 1918-03-12 | 1918-09-11 | $7700.00 | Window Closed / Lapsed |