Patent US3207562A successfully refreshed from Google Patents.
US3207562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track conversion kit for wheeled vehicles
Assignee: Individual
•
Filing: 1963-04-01
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Granted: 1965-09-21
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 John W Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:56
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/04; B60; B60F; B60F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A TREAD DRIVE VEHICLE, COMPRISING: (A) A VEHICLE WHICH TRAVELS ON A HIGHWAY AND HAS ALIGNED FRONT AND REAR WHEELS ON EACH SIDE THEREOF FORMING A SET OF WHEELS, EACH WHEEL HAVING A HUB WITH A TIRE MOUNTED THEREON; (B) A TREAD ADAPTER MEMBER INTEGRALLY SUPPOTED BY EACH OF SAID HBS ADJACENT THE OUTER SIDE OF THE CORRESPONDING WHEEL; (C) AN ENDLESS TREAD ON EACH SIDE OF SAID VEHICLE WHICH IS DISPOSED AROUND AND SUPPORTED ON EACH OF THE SETS OF WHEELS AND THEIR CORRESPONDING TREAD ADAPTER MEMBERS; (D) RADIALLY EXTENDING TREAD ENGAGING MEANS ON SAID TREAD ADAPTER MEMBER WHIHC ARE LATERALLY SPACED AND EXTEND OUTWARDLY FROM SAID WHEEL FOR ENGAGING AND SUPPORTING EACH ENDLESS TREAD IN POSITION, AND (E) SAID TREAD HAVING MEANS THEREON FOR ENGAGING SAID WHEELS AND A MEANS FOR RECEIVING SAID RADIALLY EXTENDED TREAD ENGAGING MEANS OF SAID TREAD ADAPTER MEMBER.
Claim 2
Dependent Claim
145 words
A TREAD DRIVE VEHICLE, COMPRISING: (A) A VEHICLE WHICH TRAVELS ON A HIGHWAY AND HAS ALIGNED FRONT AND REAR WHEELS ON EACH SIDE THEREOF FORMING A SET OF WHEELS, EACH WHEEL HAVING A HUB WITH A TIRE MOUNTED THEREON; (B) A TREAD ADAPTER MEMBER INTEGRALLY SUPPOTED BY EACH OF SAID HBS ADJACENT THE OUTER SIDE OF THE CORRESPONDING WHEEL; (C) AN ENDLESS TREAD ON EACH SIDE OF SAID VEHICLE WHICH IS DISPOSED AROUND AND SUPPORTED ON EACH OF THE SETS OF WHEELS AND THEIR CORRESPONDING TREAD ADAPTER MEMBERS; (D) RADIALLY EXTENDING TREAD ENGAGING MEANS ON SAID TREAD ADAPTER MEMBER WHIHC ARE LATERALLY SPACED AND EXTEND OUTWARDLY FROM SAID WHEEL FOR ENGAGING AND SUPPORTING EACH ENDLESS TREAD IN POSITION, AND (E) SAID TREAD HAVING MEANS THEREON FOR ENGAGING SAID WHEELS AND A MEANS FOR RECEIVING SAID RADIALLY EXTENDED TREAD ENGAGING MEANS OF SAID TREAD ADAPTER MEMBER.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |