US3244251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-roll bars for tractors
Assignee: Individual
•
Filing: 1964-02-24
•
Granted: 1966-04-05
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Duncan Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:28
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/13; B60R21/131; A; A01; A01B; A01B51/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A TRACTOR HAVING A REAR AXLE CASING, REAR WHEELS AND A GUARD FOR EACH WHEEL AND PROVIDED WITH AN ANTI-ROLL BAR ASSEMBLY, COMPRISING AN ANTI-ROLL BAR AND SIDE SUPPORTING UPRIGHTS THEREFOR, EACH UPRIGHT HAVING A LOWER PART, SAID LOWER PART HAVING UPPER AND LOWER ENDS WITH THE LOWER END BEING MOUNTED ON THE REAR AXLE CASING AND EXTENDING BETWEEN THE ADJACENT REAR WHEEL AND THE GUARD THEREFOR, A LATERAL EXTENSION AT THE UPPER END OF EACH LOWER PART PASSING BETWEEN THE TREAD OF THE REAR WHEEL AND THE GUARD THEREFOR AND HAVING AN OUTER END, A SHOE FOR THE EXTENSION, AN UPPER PART EXTENDING UPWARDLY FROM THE OUTER END OF THE LATERAL EXTENSION AND THE ANTI-ROLL BAR BEING RIGIDLY SECURED TO SAID UPPER PART WITH ITS RESPECTIVE ENDS PROJECTING BEYOND THE REAR WHEELS SO THAT IN THE EVENT OF THE TRACTOR FALLING ON ITS SIDE THE THRUST ON THE PROJECTING END OF THE BAR CAUSED THE UPRIGHTS TO BE SLIGHTLY DISTORTED SO THAT WHAT NOW CONSTITUTES THE UPPER SHOE BEARS ON THE TREAD OF THE ADJACENT WHEEL THEREBY RESTRICTING FURTHER BENDING OF THE SUPPORTING UPRIGHTS.
Claim 2
Dependent Claim
185 words
A TRACTOR HAVING A REAR AXLE CASING, REAR WHEELS AND A GUARD FOR EACH WHEEL AND PROVIDED WITH AN ANTI-ROLL BAR ASSEMBLY, COMPRISING AN ANTI-ROLL BAR AND SIDE SUPPORTING UPRIGHTS THEREFOR, EACH UPRIGHT HAVING A LOWER PART, SAID LOWER PART HAVING UPPER AND LOWER ENDS WITH THE LOWER END BEING MOUNTED ON THE REAR AXLE CASING AND EXTENDING BETWEEN THE ADJACENT REAR WHEEL AND THE GUARD THEREFOR, A LATERAL EXTENSION AT THE UPPER END OF EACH LOWER PART PASSING BETWEEN THE TREAD OF THE REAR WHEEL AND THE GUARD THEREFOR AND HAVING AN OUTER END, A SHOE FOR THE EXTENSION, AN UPPER PART EXTENDING UPWARDLY FROM THE OUTER END OF THE LATERAL EXTENSION AND THE ANTI-ROLL BAR BEING RIGIDLY SECURED TO SAID UPPER PART WITH ITS RESPECTIVE ENDS PROJECTING BEYOND THE REAR WHEELS SO THAT IN THE EVENT OF THE TRACTOR FALLING ON ITS SIDE THE THRUST ON THE PROJECTING END OF THE BAR CAUSED THE UPRIGHTS TO BE SLIGHTLY DISTORTED SO THAT WHAT NOW CONSTITUTES THE UPPER SHOE BEARS ON THE TREAD OF THE ADJACENT WHEEL THEREBY RESTRICTING FURTHER BENDING OF THE SUPPORTING UPRIGHTS.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |