Patent US3144843A successfully refreshed from Google Patents.
US3144843A
Expired / Lapsed
US
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Minimum tillage planter
Assignee: Individual
•
Filing: 1959-09-11
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Granted: 1964-08-18
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Expires: 1979-09-11
Abstract
No abstract record available.
Inventors
- 👤 Norman E Watson
- 👤 John W Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:55
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/006; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22; Y02P; Y02P60/00; Y02P60/20; Y10; Y10S; Y10S111/00; Y10S111/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A SELF-PROPELLED MINIMUM TILLAGE PLANTER COMPRISING, IN COMBINATION, A FRAME; FRONT WHEELS FOR SAID FRAME; STEERING MEANS FOR SAID FRONT WHEELS; A FORWARDLY FACING SEAT REARWARDLY OF SAID STEERING MEANS; A PLURALITY OF LATERALLY SPACED SEED DISPENSING MEANS MOUNTED ON SAID FRAME FOR DISPENSING SEED IN PARALLEL PATHS IN THE DIRECTION OF TRAVEL OF SAID PLANTER; A PLURALITY OF REAR FRAME SUPPORTING MEANS INCLUDING COMPACTING WHEELS MOUNTED FORWARDLY OF SAID SEED DISPENSING MEANS AND CONFINED TO SUBSTANTIAL ALIGNMENT WITH SAID PATHS FOR SUPPORTING SAID FRAME AND COMPACTING SAID PATHS OF SAID SEED DISPENSING MEANS; MOUNTING MEANS VERTICALLY MOVABLY ATTACHING EACH OF SAID SUPPORTING MEANS TO SAID FRAME INCLUDING PRESSURE EQUALIZING MEANS FOR MAINTAINING SUBSTANTIALLY EQUAL PRESSURE BETWEEN EACH OF SAID COMPACTING WHEELS AND THE GROUND NOTWITHSTANDING VARIATIONS IN THE VERTICAL POSITIONS OF SAID COMPACTING WHEELS; AN ENGINE MOUNTED ON SAID FRAME MEANS; AND DRIVING MEANS CONNECTING SAID ENGINE WITH CERTAIN OF SAID COMPACTING WHEELS.
Claim 2
Dependent Claim
154 words
A SELF-PROPELLED MINIMUM TILLAGE PLANTER COMPRISING, IN COMBINATION, A FRAME; FRONT WHEELS FOR SAID FRAME; STEERING MEANS FOR SAID FRONT WHEELS; A FORWARDLY FACING SEAT REARWARDLY OF SAID STEERING MEANS; A PLURALITY OF LATERALLY SPACED SEED DISPENSING MEANS MOUNTED ON SAID FRAME FOR DISPENSING SEED IN PARALLEL PATHS IN THE DIRECTION OF TRAVEL OF SAID PLANTER; A PLURALITY OF REAR FRAME SUPPORTING MEANS INCLUDING COMPACTING WHEELS MOUNTED FORWARDLY OF SAID SEED DISPENSING MEANS AND CONFINED TO SUBSTANTIAL ALIGNMENT WITH SAID PATHS FOR SUPPORTING SAID FRAME AND COMPACTING SAID PATHS OF SAID SEED DISPENSING MEANS; MOUNTING MEANS VERTICALLY MOVABLY ATTACHING EACH OF SAID SUPPORTING MEANS TO SAID FRAME INCLUDING PRESSURE EQUALIZING MEANS FOR MAINTAINING SUBSTANTIALLY EQUAL PRESSURE BETWEEN EACH OF SAID COMPACTING WHEELS AND THE GROUND NOTWITHSTANDING VARIATIONS IN THE VERTICAL POSITIONS OF SAID COMPACTING WHEELS; AN ENGINE MOUNTED ON SAID FRAME MEANS; AND DRIVING MEANS CONNECTING SAID ENGINE WITH CERTAIN OF SAID COMPACTING WHEELS.
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |