US3218739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dredge
Assignee: Ellicott Machine Corp
•
Filing: 1963-05-13
•
Granted: 1965-11-23
•
Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Carl P Kaufmann
- 👤 Bolhar Edgar Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:37
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/02; E02F9/04; E02F9/045; E02F3/00; E02F3/04; E02F3/88; E02F3/8858; E02F3/90; E02F3/92; E02F3/9212; E02F3/9225; E02F3/9231
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A HYDRAULIC DREDGE FOR EXCAVATING THE BOTTOM UNDER A BODY OF WATER COMPRISING A SUBMERSIBLE CAPSULE INCLUDING A CUTTER AND A PUMP OPERABLE TO EXCAVATE SAID BOTTOM, SUBMERGED SADDLE MEANS SUPPORTED ADJACENT SAID BOTTOM AND FIXED AGAINST MOVEMENT RELATIVE THERETO, A YOKE MOUNTED ON SAID SADDLE FOR MOVEMENT RELATIVE THEREO, POWER MEANS CONTROLLING SUCH MOVEMENT OF SAID YOKE, AND BEAMS CONNECTED BETWEEN SAID YOKE AND CAPSULE ABSORBING REACTIVE FORCES OF DREDGING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |