Patent US3214189A successfully refreshed from Google Patents.
US3214189A
Expired / Lapsed
US
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Tractor weight transfer control
Assignee: AGCO Ltd
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Filing: 1963-04-08
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Granted: 1965-10-26
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Robert B Annat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:30
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/02; A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/1115; A01B63/114; A01B63/1145; A01B63/14; A01B63/145
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
IN A TRACTOR HAVING DRAFT LINKS TRAILING FROM A FRAME AND A HYDRAULIC SYSTEM INCLUDING A RAM COUPLED TO LIFT THE LINKS CONTROLLED BY A SPRING-POSITIONED CONTROL ROD EXTENDING REARWARDLY FROM THE FRAME ABOVE THE LINKS, THE IMPROVEMENT COMPRISING, IN COMBINATION, A HYDRAULIC ACTUATOR PIVOTALLY ANCHORED ON THE TOP OF SAID FRAME ABOVE SAID CONTROL ROD, A LEVER PIVOTED ON SAID FRAME AND MECHANICALLY COUPLING THE ACTUATOR AND SAID CONTROL ROD, AND A HYDRAULIC LINE CONNECTING THE PRESSURE SIDE OF SAID RAM AND SAID ATCUATOR SO THAT THE LIFTING FORCE ON THE RAM IS SENSED BY SAID CONTROL ROD.
References Cited (Backward Citations)
US3073622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |