US3345764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way terracing device
Assignee: Individual
•
Filing: 1966-06-13
•
Granted: 1967-10-10
•
Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Albert C Malsam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:17
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7695
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A GRADING DEVICE COMPRISING; A WHEELED FRAME, A FIRST ENDLESS CONVEYOR HAVING RECEIVING AND DISCHARGING ENDS MOUNTED ON SAID FRAME, DISPOSED RRANSVERSELY THEREOF AND HAVING THE DISCHARGE END THEREOF EXTENDING OUTWARDLY BEYOND ONE SIDE OF SAID FRAME, A FIRST PLOW MOUNTED ON THE OTHER SIDE OF SAID FRAME FROM THE DISCHARGE END OF SAID FIRST CONVEYOR AND POSITIONABLE SO AS TO EXCAVATE EARTH AND PASS IT LATERALLY ONTO THE RECEIVING END OF SAID FIRST CONVEYOR, FRAME MEANS MOUNTING SAID FIRST PLOW ON SAID FRAME IN SUCH MANNER AS TO PERMIT VERTICAL ADJUSTMENT OF SAID PLOW INTO AND OUT OF GROUND ENGAGING RELATIONSHIP, A SECOND ENDLESS CONVEYOR HAVING RECEIVING AND DISCHARGING END MOUNTED ON SAID FRAME LONGITUDINALLY REARWARDLY OF SAID FIRST CONVEYOR, DISPOSED TRANSVERSELY THEREOF AND HAVING THE DISCHARGE END THEREOF EXTENDING IN AN OPPOSITE DIRECTION FROM THE SAID FIRST CONVEYOR OUTWARDLY BEYOND THE OTHER SIDE OF SAID FRAME, A SECOND PLOW MOUNTED ON THE OTHER SIDE OF THE FRAME FORM THE DISCHARGE END OF THE SECOND CONVEYOR AND POSITIONABLE SO AS TO EXCAVATE EARTH AND DISCHARGE IT ONTO THE RECEIVING END OF SAID SECOND CONVEYOR,
Claim 2
Dependent Claim
185 words
A GRADING DEVICE COMPRISING; A WHEELED FRAME, A FIRST ENDLESS CONVEYOR HAVING RECEIVING AND DISCHARGING ENDS MOUNTED ON SAID FRAME, DISPOSED RRANSVERSELY THEREOF AND HAVING THE DISCHARGE END THEREOF EXTENDING OUTWARDLY BEYOND ONE SIDE OF SAID FRAME, A FIRST PLOW MOUNTED ON THE OTHER SIDE OF SAID FRAME FROM THE DISCHARGE END OF SAID FIRST CONVEYOR AND POSITIONABLE SO AS TO EXCAVATE EARTH AND PASS IT LATERALLY ONTO THE RECEIVING END OF SAID FIRST CONVEYOR, FRAME MEANS MOUNTING SAID FIRST PLOW ON SAID FRAME IN SUCH MANNER AS TO PERMIT VERTICAL ADJUSTMENT OF SAID PLOW INTO AND OUT OF GROUND ENGAGING RELATIONSHIP, A SECOND ENDLESS CONVEYOR HAVING RECEIVING AND DISCHARGING END MOUNTED ON SAID FRAME LONGITUDINALLY REARWARDLY OF SAID FIRST CONVEYOR, DISPOSED TRANSVERSELY THEREOF AND HAVING THE DISCHARGE END THEREOF EXTENDING IN AN OPPOSITE DIRECTION FROM THE SAID FIRST CONVEYOR OUTWARDLY BEYOND THE OTHER SIDE OF SAID FRAME, A SECOND PLOW MOUNTED ON THE OTHER SIDE OF THE FRAME FORM THE DISCHARGE END OF THE SECOND CONVEYOR AND POSITIONABLE SO AS TO EXCAVATE EARTH AND DISCHARGE IT ONTO THE RECEIVING END OF SAID SECOND CONVEYOR,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |