Patent US1907640A successfully refreshed from Google Patents.
US708583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dredging apparatus.
Assignee: Individual
•
Filing: 1901-12-11
•
Granted: 1902-09-09
•
Expires: 1921-12-11
Abstract
No abstract record available.
Inventors
- 👤 George G Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:19
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/907; Y; Y10; Y10S; Y10S37/00; Y10S37/901
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) | 1905-09-08 | 1906-03-10 | 1906-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-09-08 | 1910-03-10 | 1910-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-09-08 | 1914-03-10 | 1914-09-09 | $7700.00 | Window Closed / Lapsed |