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US107710A
Expired / Lapsed
US
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Improvement in ditching-machines
Assignee: —
•
Filing: —
•
Granted: 1870-09-27
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Expires: 1887-09-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/18; E02F3/20; Y; Y10; Y10S; Y10S180/00; Y10S180/906
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) | 1873-09-26 | 1874-03-28 | 1874-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1877-09-26 | 1878-03-28 | 1878-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1881-09-26 | 1882-03-28 | 1882-09-27 | $7700.00 | Window Closed / Lapsed |