US3170531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible tractor
Assignee: Individual
•
Filing: 1960-05-24
•
Granted: 1965-02-23
•
Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Katzenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:50
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN ENDLESS TRACK TYPE TRACTOR WHICH IS CONVERTIBLE TO A TRICYCLE TYPE TRACTOR COMPRISING, A FRAME, A DRIVER WHEEL CONNECTED TO EACH SIDE OF THE REAR PORTION OF SAID FRAME, MOTOR MEANS CARRIED BY SAID FRAME FOR OPERATION OF SAID WHEELS, A SLIDABLE REMOVABLE AXLE MEMBER ATTACHED TO EACH SIDE OF THE FORWARD END OF SAID FRAME, A FORWARD WHEEL REVOLVABLY MOUNTED TO EACH SAID AXLE MEMBER, AN ENDLESS TRACK SECURED OVER THE RESPECTIVE FRONT AND REAR WHEELS ON EACH SIDE OF THE FRAME, MEANS SECURED TO SAID FRAME FOR FORCING SAID AXLE MEMBER FORWARDLY TO MAINTAIN SAID TRACK SUBSTANTIALLY TAUT BETWEEN SAID RESPECTIVE FRONT AND REAR WHEELS WHEN USED AS AN ENDLESS TRACK TYPE TRACTOR, MEANS FOR LOOSENING THE SAID TRACK TO PERMIT REMOVAL OF THE TRACK AND REMOVAL OF THE FRONT WHEELS, MEANS FOR PIVOTALLY CONNECTING SAID TRICYCLE TYPE WHEEL TO THE FRONT OF A FRAME FOR USE WHEN SAID TRACK AND SAID OTHER FRONT WHEELS ARE REMOVED FROM THE TRACTOR.
Claim 2
Dependent Claim
163 words
AN ENDLESS TRACK TYPE TRACTOR WHICH IS CONVERTIBLE TO A TRICYCLE TYPE TRACTOR COMPRISING, A FRAME, A DRIVER WHEEL CONNECTED TO EACH SIDE OF THE REAR PORTION OF SAID FRAME, MOTOR MEANS CARRIED BY SAID FRAME FOR OPERATION OF SAID WHEELS, A SLIDABLE REMOVABLE AXLE MEMBER ATTACHED TO EACH SIDE OF THE FORWARD END OF SAID FRAME, A FORWARD WHEEL REVOLVABLY MOUNTED TO EACH SAID AXLE MEMBER, AN ENDLESS TRACK SECURED OVER THE RESPECTIVE FRONT AND REAR WHEELS ON EACH SIDE OF THE FRAME, MEANS SECURED TO SAID FRAME FOR FORCING SAID AXLE MEMBER FORWARDLY TO MAINTAIN SAID TRACK SUBSTANTIALLY TAUT BETWEEN SAID RESPECTIVE FRONT AND REAR WHEELS WHEN USED AS AN ENDLESS TRACK TYPE TRACTOR, MEANS FOR LOOSENING THE SAID TRACK TO PERMIT REMOVAL OF THE TRACK AND REMOVAL OF THE FRONT WHEELS, MEANS FOR PIVOTALLY CONNECTING SAID TRICYCLE TYPE WHEEL TO THE FRONT OF A FRAME FOR USE WHEN SAID TRACK AND SAID OTHER FRONT WHEELS ARE REMOVED FROM THE TRACTOR.
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US2402042A
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US2446242A
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US2698667A
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US2855059A
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US2909378A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |