Patent US3287835A successfully refreshed from Google Patents.
US3287835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land leveler
Assignee: Individual
•
Filing: 1964-03-23
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Granted: 1966-11-29
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Waterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:40
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A LAND LEVELER HAVING FORWARDLY AND REARWARDLY EXTENDING FEELER ELEMENTS, GROUNG ENGAGING WHEEL MEANS CARRIED BY EACH FEELER ELEMENT, EARTH LEVELING MEANS CARRIED BY SAID LAND LEVELER, AND MEANS FOR CONTROLLING SAID EARTH LEVELING MEANS IN RESPONSE TO VERTICAL MOVEMENT OF SAID GROUND ENGAGING WHEEL MEANS, AT LEAST ONE OF SAID GROUND ENGAGING WHEEL MEANS COMPRISING A VERTICAL PIVOT CARRIED ADJACENT THE END OF ITS ASSOCIATED FEELER ELEMENT, A YOKE DEPENDING FROM SAID PIVOT, A HORIZONTALLY PIVOTED ARM CARRIED BY SAID YOKE, A SLOT AT ONE END OF SAID ARM, AN AXLE EXTENDING ACROSS SAID SLOT, A FIRST WHEEL ROTATABLY MOUNTED ON SAID AXLE, A SECOND VERTICAL PIVOT AT THE OTHER END OF SAID ARM, A BIFURCATED SWIVEL BRACKET SECURED TO SAID SECOND VERTICAL PIVOT IN DEPENDING RELATION, A SECOND AXLE EXTENDING TRANSVERSELY BETWEEN THE BIFURCATIONS OF SAID BRACKET, AND A SECOND WHEEL ROTATABLY MOUNTED ON SAID SECOND AXLE.
Claim 2
Dependent Claim
149 words
A LAND LEVELER HAVING FORWARDLY AND REARWARDLY EXTENDING FEELER ELEMENTS, GROUNG ENGAGING WHEEL MEANS CARRIED BY EACH FEELER ELEMENT, EARTH LEVELING MEANS CARRIED BY SAID LAND LEVELER, AND MEANS FOR CONTROLLING SAID EARTH LEVELING MEANS IN RESPONSE TO VERTICAL MOVEMENT OF SAID GROUND ENGAGING WHEEL MEANS, AT LEAST ONE OF SAID GROUND ENGAGING WHEEL MEANS COMPRISING A VERTICAL PIVOT CARRIED ADJACENT THE END OF ITS ASSOCIATED FEELER ELEMENT, A YOKE DEPENDING FROM SAID PIVOT, A HORIZONTALLY PIVOTED ARM CARRIED BY SAID YOKE, A SLOT AT ONE END OF SAID ARM, AN AXLE EXTENDING ACROSS SAID SLOT, A FIRST WHEEL ROTATABLY MOUNTED ON SAID AXLE, A SECOND VERTICAL PIVOT AT THE OTHER END OF SAID ARM, A BIFURCATED SWIVEL BRACKET SECURED TO SAID SECOND VERTICAL PIVOT IN DEPENDING RELATION, A SECOND AXLE EXTENDING TRANSVERSELY BETWEEN THE BIFURCATIONS OF SAID BRACKET, AND A SECOND WHEEL ROTATABLY MOUNTED ON SAID SECOND AXLE.
References Cited (Backward Citations)
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US2886906A
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US2994977A
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US3052997A
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |