US3110973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land smoother
Assignee: CONWAY TECHNOLOGIES Corp A CORP OF TX
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Filing: 1961-02-23
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Granted: 1963-11-19
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Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Aaron G Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:00
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7663
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A LAND SMOOTHER, COMPRISING A FRAME ADAPTED FOR MOVEMENT FORWARDLY OVER THE GROUND AND INCLUDING SUBSTANTIALLY UPRIGHT LONGITUDINALLY EXTENDING SIDE MEMBERS INTERCONNECTED BY SUBSTANTIALLY UPRIGHT LATERALLY EXTENDING CROSS MEMBERS, GROUND ENGAGING ELEMENTS CARRIED BY THE FRAME INCLUDING A BLADE ON THE LOWER EDGE OF EACH CROSS MEMBER AND EXTENDING LATERALLY COEXTENSIVE THEREWITH FOR ENGAGING WITH THE GROUND ALONG ITS LOWER EDGE, EACH OF SAID BLADES HAVING A FRONT FACE WHICH IS TILTED REARWARDLY FROM ITS UPPER EDGE TO ITS LOWER EDGE AND A LOWER EDGE FIXED IN A PLANE COMMON TO THE LOWER EDGES OF ALL SAID TILTED BLADES, AND AT LEAST ONE WHEEL CARRIED BY THE FRAME, MEANS FOR MAINTAINING SAID WHEEL IN YIELDABLE ENGAGEMENT WITH THE GROUND, AND MEANS FOR ADJUSTING THE FORCE WITH WHICH SAID WHEEL IS SO MAINTAINED.
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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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |