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Patent US3291222A successfully refreshed from Google Patents.
US3291222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural implement
Assignee: Case LLC
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Filing: 1964-01-13
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Granted: 1966-12-13
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Harold A Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:40
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/005; A01C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A TRACTOR MOUNTED IMPLEMENT OF THE DISTRIBUTOR TYPE INCLUDING MEANS FOR RAISING AND LOWERING THE IMPLEMENT AND AN ENDLESS FLEXIBLE ELEMENT EXTENDED FROM THE TRACTOR TO THE IMPLEMENT, MEANS RESPONSIVE TO THE TENSION IN SAID FLEXIBLE ELEMENT, FEEDING MEANS ON SAID IMPLEMENT ACTUATED BY SAID FLEXIBLE ELEMENT, AND CONTROL MEANS CONNECTED TO AND ACTUATED BY SAID TENSION RESPONSIVE MEANS TO START AND STOP THE ACTUATION OF SAID FEEDING MEANS BY SAID FLEXIBLE ELEMENT.
Claim 2
Dependent Claim
74 words
IN A TRACTOR MOUNTED IMPLEMENT OF THE DISTRIBUTOR TYPE INCLUDING MEANS FOR RAISING AND LOWERING THE IMPLEMENT AND AN ENDLESS FLEXIBLE ELEMENT EXTENDED FROM THE TRACTOR TO THE IMPLEMENT, MEANS RESPONSIVE TO THE TENSION IN SAID FLEXIBLE ELEMENT, FEEDING MEANS ON SAID IMPLEMENT ACTUATED BY SAID FLEXIBLE ELEMENT, AND CONTROL MEANS CONNECTED TO AND ACTUATED BY SAID TENSION RESPONSIVE MEANS TO START AND STOP THE ACTUATION OF SAID FEEDING MEANS BY SAID FLEXIBLE ELEMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |