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US3129780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled tractor construction
Assignee: Individual
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Filing: 1961-04-11
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Granted: 1964-04-21
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Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 William I Uyehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:33
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/36; B62; B62D; B62D53/00; B62D53/02; B62D53/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A WHEELED TRACTOR CONSTRUCTION COMPRISING A LONGITUDINAL EXTENDING FRAME, FRONT AND REAR LONGITUDINALLY EXTENDING SUPPORT BEAMS DEFINING ONE PAIR OF BEAMS ON EACH SIDE OF SAID FRAME, FIRST MEANS PIVOTALLY SECURING ADJACENT ENDS OF THE FRONT AND REAR BEAMS OF EACH PAIR OF BEAMS TOGETHER, SECOND MEANS PIVOTALLY SECURING ONE SET OF CORRESPONDING BEAMS OF SAID PAIRS OF BEAMS TO THE CORRESPONDING SIDES OF SAID TRACTOR FRAME FOR ROTATION ABOUT AXES EXTENDING TRANSVERSELY OF THE MIDPORTIONS OF SAID ONE SET OF BEAMS INTERMEDIATE THEIR OPPOSITE ENDS AND THIRD MEANS PIVOTALLY SECURING THE OTHER SET OF CORRESPONDING BEAMS OF SAID PAIRS OF BEAMS TO SAID FRAME FOR ROTATION ABOUT AXES FIXED RELATIVE TO SAID FRAME AGAINST
Claim 2
Dependent Claim
115 words
A WHEELED TRACTOR CONSTRUCTION COMPRISING A LONGITUDINAL EXTENDING FRAME, FRONT AND REAR LONGITUDINALLY EXTENDING SUPPORT BEAMS DEFINING ONE PAIR OF BEAMS ON EACH SIDE OF SAID FRAME, FIRST MEANS PIVOTALLY SECURING ADJACENT ENDS OF THE FRONT AND REAR BEAMS OF EACH PAIR OF BEAMS TOGETHER, SECOND MEANS PIVOTALLY SECURING ONE SET OF CORRESPONDING BEAMS OF SAID PAIRS OF BEAMS TO THE CORRESPONDING SIDES OF SAID TRACTOR FRAME FOR ROTATION ABOUT AXES EXTENDING TRANSVERSELY OF THE MIDPORTIONS OF SAID ONE SET OF BEAMS INTERMEDIATE THEIR OPPOSITE ENDS AND THIRD MEANS PIVOTALLY SECURING THE OTHER SET OF CORRESPONDING BEAMS OF SAID PAIRS OF BEAMS TO SAID FRAME FOR ROTATION ABOUT AXES FIXED RELATIVE TO SAID FRAME AGAINST
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |