US3237324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angled blade land leveler
Assignee: Individual
•
Filing: 1965-04-22
•
Granted: 1966-03-01
•
Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Curtis H Eddins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:06
CPC Classifications
A; A01; A01B; A01B31/00; E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7663; E02F3/7668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A LAND LEVELER ADAPTED TO BE TOWED ALONG THE GROUND BY A TRACTOR COMPRISING, IN COMBINATION, AN ELONGATED FRAME HAVING A PAIR OF LATERALLY SPACED DIRT-CONFINING SIDE RAILS RIGIDLY CONNECTED BY LONGITUDINALLY SPACED, TRANSVERSE FRAME MEMBERS, EACH OF SAID RAILS INCLUDING AN INTERMEDIATE GROUND-ENGAGING AND DIRT CONFINING FRAME PORTION WITH AN UPWARDLY DISPLACED FRAME PORTION ADJACENT EACH END AND IN LONGITUDINAL ALIGNMENT WITH SAID INTERMEDIATE FRAME PORTION, A SKID ATTACHED TO SAID SIDE RAILS AT EACH OF SAID UPWARDLY DISPLACED FRAME PORTIONS TO PROVIDE A SUPPORT ADJACENT EACH CORNER OF SAID ELONGATED FRAME, EACH OF SAID SKIDS BEING LONGITUDINALLY ALIGNED WITH SAID INTERMEDIATE FRAME PORTION AND INCLUDING A HORIZONTAL SUPPORTING SURFACE WHICH LIES IN THE SAME HORIZONTAL PLANE AS SAID INTERMEDIATE FRAME PORTIONS TO SUPPORT SAID SIDE RAILS AT DIRT CONFINING ELEVATION, AND A PLURALITY OF DIRT SCRAPING BLADES MOUNTED ON SAID FRAME IS STAGGERED, LONGITUDINALLY SPACED RELATIONSHIP AND ANGULARLY AND REARWARDLY DISPOSED SO AS TO DEFLECT DIRT TRANSVERSELY BACK AND FORT WITHIN SAID SIDE RAILS AND TOWARD THE REAR OF SAID FRAME FOR DISCHARGE THEREFROM.
Claim 2
Dependent Claim
176 words
A LAND LEVELER ADAPTED TO BE TOWED ALONG THE GROUND BY A TRACTOR COMPRISING, IN COMBINATION, AN ELONGATED FRAME HAVING A PAIR OF LATERALLY SPACED DIRT-CONFINING SIDE RAILS RIGIDLY CONNECTED BY LONGITUDINALLY SPACED, TRANSVERSE FRAME MEMBERS, EACH OF SAID RAILS INCLUDING AN INTERMEDIATE GROUND-ENGAGING AND DIRT CONFINING FRAME PORTION WITH AN UPWARDLY DISPLACED FRAME PORTION ADJACENT EACH END AND IN LONGITUDINAL ALIGNMENT WITH SAID INTERMEDIATE FRAME PORTION, A SKID ATTACHED TO SAID SIDE RAILS AT EACH OF SAID UPWARDLY DISPLACED FRAME PORTIONS TO PROVIDE A SUPPORT ADJACENT EACH CORNER OF SAID ELONGATED FRAME, EACH OF SAID SKIDS BEING LONGITUDINALLY ALIGNED WITH SAID INTERMEDIATE FRAME PORTION AND INCLUDING A HORIZONTAL SUPPORTING SURFACE WHICH LIES IN THE SAME HORIZONTAL PLANE AS SAID INTERMEDIATE FRAME PORTIONS TO SUPPORT SAID SIDE RAILS AT DIRT CONFINING ELEVATION, AND A PLURALITY OF DIRT SCRAPING BLADES MOUNTED ON SAID FRAME IS STAGGERED, LONGITUDINALLY SPACED RELATIONSHIP AND ANGULARLY AND REARWARDLY DISPOSED SO AS TO DEFLECT DIRT TRANSVERSELY BACK AND FORT WITHIN SAID SIDE RAILS AND TOWARD THE REAR OF SAID FRAME FOR DISCHARGE THEREFROM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |