US3624933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dredging plant apparatus combining pumping and digging action
Assignee: EPI SpA
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Filing: 1969-06-12
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Granted: 1971-12-07
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Expires: 1989-06-12
Abstract
Abstract DREDGING PLANT APPARATUS IN WHICH THE CONVENTIONAL PUMP BODY IS INTEGRAL WITH A DIGGING SHOVEL OF AN EXCAVATOR. THE DEVICE WHICH IS OPERATIVE BY THUSTING OR DRAGGING ACTION UTILIZES A SHOVEL WITH A PLURALITY OF PUMP BODIES OPENING IN THE REAR OF THE SHOVEL AND WITH BLOWING NOZZLES ALSO MOUNTED THEREON AND WITH PUMP AND NOZZLE OPENINGS DIRECTED IN THE DIRECTION OF OPERATION OF THE SHOVEL.
Inventors
- 👤 Giovanni Faldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:34
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/8833; E02F3/8841; E02F3/90; E02F3/905; E02F3/92; E02F3/9212; E02F3/9218; E02F3/9256; E02F9/00; E02F9/06; F; F04; F04F; F04F1/00; F04F1/06; F04F1/10
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |