Patent US3245159A successfully refreshed from Google Patents.
US3245159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road trencher
Assignee: ULMAC EQUIPMENT CO
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Filing: 1963-05-10
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Granted: 1966-04-12
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Raymore D Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:32
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7695
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
148 words
A ROAD TRENCHER COMPRISING A POWER PROPELLED VEHICLE HAVING LATERALLY SPACED ROAD WHEELS, CONVEYOR BELT MEANS HAVING A CONVEYOR BELT, A DETACHABLE TORQUE MEMBER CARRIED BY SAID VEHICLE AT ONE SIDE THEREOF MOUNTING PIVOTALLY THE CONVEYOR BELT MEANS WITH A DOWNWARD AND FORWARD INCLINATION ALONGSIDE OF SAID VEHICLE TO PROPEL SAID CONVEYOR BELT MEANS FORWARDLY, A TRENCH CUTTING MEANS ON THE FORWARD END OF THE CONVEYOR BELT MEANS INCLUDING A HORIZONTAL CUTTER BAR AND UPRIGHT SIDE CUTTERS INCLINED FORWARDLY WITH DIVERGINGLY BEVELED EDGES, A SOLID RUBBER TIRED GAUGE WHEEL MEANS CARRIED BY SAID FORWARD END OF THE CONVEYOR BELT MEANS DISPOSED IN FRONT OF AND IN ALIGNMENT WITH ONE OF SAID ROAD WHEELS, MEANS FOR ADJUSTING THE HEIGHT OF SAID GUAGE WHEEL MEANS ABOVE SAID HORIZONTAL CUTTER BAR, AND MEANS FOR CARRYING ONTO SAID CONVEYOR BELT MATERIAL LOOSENED BY THE FORWARD MOVEMENT OF THE CUTTER BAR AND CUTTERS.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |