Patent US3572867A successfully refreshed from Google Patents.
US2260293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic suction dredge
Assignee: Individual
•
Filing: 1940-05-22
•
Granted: 1941-10-28
•
Expires: 1960-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jesse J Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:35
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/06; E02F9/062; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/905; E02F3/92; E02F3/9212; E02F3/9225; E02F3/9237
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) | 1944-10-27 | 1945-04-28 | 1945-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-27 | 1949-04-28 | 1949-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-27 | 1953-04-28 | 1953-10-28 | $7700.00 | Window Closed / Lapsed |