US3107737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tillage implement and wheel therefor
Assignee: Richardson Manufacturing Co Inc
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Filing: 1961-07-03
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Granted: 1963-10-22
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 James D Van Sickle
- 👤 Francis W Brinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:35
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/02; A01B21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A TILLAGE WHEEL COMPRISING: A HUB UNIT; AND A PLURALITY OF ELONGATED, GROUND-ENGAGING TEETH CONNECTED TO AND EXTENDING OUTWARDLY FROM THE HUB UNIT AND SPACED CIRCUMFERENTIALLY THEREAROUND, EACH OF THE TEETH BEING OF LONGITUDINALLY ARCUATE CONFIGURATION AND HAVING A PAIR OF OPPOSED MAJOR SURFACES, EACH OF THE SURFACES HAVING A LONGITUDINAL AXIS AND A TRANSVERSE AXIS AND ONE OF THE SURFACES OF EACH TOOTH BEING LONGITUDINALLY CONCAVE AND THE OTHER SURFACE OF EACH TOOTH BEING LONGITUDINALLY CONVEX, THE MAXIMUM EFFECTIVE TRANSVERSE THICKNESS OF EACH TOOTH BETWEEN SAID SURFACES THEREOF BEING LESS THAN THE EFFECTIVE TRANSVERSE WIDTH OF THE RESPECTIVE TOOTH, SAID TEETH BEING LOCATED ON THE HUB UNIT IN DISPOSITION WITH SAID TRANSVERSE AXES OF THE SURFACES THEREOF BEING IN GENERALLY PARALLEL RELATIONSHIP TO THE AXIS OF SAID HUB, SAID MAJOR SURFACES OF EACH TOOTH CONVERGING THROUGHOUT AT LEAST AN OUTER ZONE OF ONE LONGITUDINAL MARGIN OF THE CORRESPONDING TOOTH TO DEFINE AN ARCUATE CUTTING EDGE EXTENDING
Claim 2
Dependent Claim
157 words
A TILLAGE WHEEL COMPRISING: A HUB UNIT; AND A PLURALITY OF ELONGATED, GROUND-ENGAGING TEETH CONNECTED TO AND EXTENDING OUTWARDLY FROM THE HUB UNIT AND SPACED CIRCUMFERENTIALLY THEREAROUND, EACH OF THE TEETH BEING OF LONGITUDINALLY ARCUATE CONFIGURATION AND HAVING A PAIR OF OPPOSED MAJOR SURFACES, EACH OF THE SURFACES HAVING A LONGITUDINAL AXIS AND A TRANSVERSE AXIS AND ONE OF THE SURFACES OF EACH TOOTH BEING LONGITUDINALLY CONCAVE AND THE OTHER SURFACE OF EACH TOOTH BEING LONGITUDINALLY CONVEX, THE MAXIMUM EFFECTIVE TRANSVERSE THICKNESS OF EACH TOOTH BETWEEN SAID SURFACES THEREOF BEING LESS THAN THE EFFECTIVE TRANSVERSE WIDTH OF THE RESPECTIVE TOOTH, SAID TEETH BEING LOCATED ON THE HUB UNIT IN DISPOSITION WITH SAID TRANSVERSE AXES OF THE SURFACES THEREOF BEING IN GENERALLY PARALLEL RELATIONSHIP TO THE AXIS OF SAID HUB, SAID MAJOR SURFACES OF EACH TOOTH CONVERGING THROUGHOUT AT LEAST AN OUTER ZONE OF ONE LONGITUDINAL MARGIN OF THE CORRESPONDING TOOTH TO DEFINE AN ARCUATE CUTTING EDGE EXTENDING
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |