US3282367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-wheel drive tractors with trailer articulation means moved laterally automatically in response to the relative angular positions of the tractor axles
Assignee: Matbro Ltd
•
Filing: 1963-04-08
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Granted: 1966-11-01
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Leonard S Mathew
- 👤 George W A Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
B; B62; B62D; B62D12/00; B62D53/00; B62D53/02; B62D53/025; B62D53/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A FOUR-WHEEL DRIVE TRACTOR COMPRISING A PAIR OF SUPPORTING FRAMES PIVOTALLY CONNECTED TO EACH OTHER ON A FRAME PIVOTING VERTICAL AXIS BETWEEN SAID FRAMES, AND DRIVING AXLE ON EACH FRAME WITH THE FRAME PIVOTING VERTICAL PIVOT AXIS BETWEEN SAID AXLES, AND ARTICULATION POINT MEMBER FOR THE ATTACHMENT OF AN ARTICULATED TRAILER, AND MEANS ON ONE OF SAID SUPPORTING FRAMES AND ON WHICH SAID ARTICULATION POINT MEMBER IS MOUNTED FOR AUTOMATICALLY MOVING SAID ARTICULATION POINT MEMBER LATERALLY IN RELATION TO THE SUPPORTING FRAME ON WHICH IT IS POSITIONED IN THE SAME DIRECTION AS THE TRACTOR IS STEERED, THE AMOUNT OF SUCH RELATIVE LATERAL MOVEMENT BEING DEPENDENT ON THE RELATIVE ANGULAR POSITION OF SAID AXLES AND MEANS UNDER THE CONTROL OF THE OPERATOR AND COUPLED TO SAID MOUNTING AND MOVING MEANS FOR OVERRIDING SAID
References Cited (Backward Citations)
US2594695A
Cited
US3007590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |