US3224482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable tread tires
Assignee: Pirelli and C SpA
•
Filing: 1964-02-04
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Granted: 1965-12-21
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Barassi Carlo
- 👤 Cappa Giulio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:36
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/02; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PNEUMATIC TIRE COMPRISING A REMOVABLE TREAD RING, A CARRYING CARCASS, A PLURALITY OF LONGITUDINAL RIBS PROVIDED ON THE OUTER PERIPHERY OF SAID CARCASS, SAID TREAD RING EXTENDING OVER SAID CARCASS AND HAVING A PLURALITY OF GROOVES ON ITS INNER SURFACE WHICH RECEIVE SAID RIBS AND WHICH DIVIDE SAID TREAD RING INTO A CENTRAL PORTION AND AT LEAST TWO LATERAL PORTIONS, A GROUP OF INEXTENSIBLE LONGITUDINAL CORDS WHOLLY CONFINED WITHIN EACH OF SAID PORTIONS OF SAID TREAD RING AND LYING ON A SURFACE HAVING A SUBSTANTIAL TRANSVERSE BENDING, AND AT LEAST TWO STRIPS OF FABRIC DISPOSED IN SAID TREAD RING IN A RADIALLY OUTERMOST POSITION WITH RESPECT TO SAID CORDS.
Claim 2
Dependent Claim
110 words
A PNEUMATIC TIRE COMPRISING A REMOVABLE TREAD RING, A CARRYING CARCASS, A PLURALITY OF LONGITUDINAL RIBS PROVIDED ON THE OUTER PERIPHERY OF SAID CARCASS, SAID TREAD RING EXTENDING OVER SAID CARCASS AND HAVING A PLURALITY OF GROOVES ON ITS INNER SURFACE WHICH RECEIVE SAID RIBS AND WHICH DIVIDE SAID TREAD RING INTO A CENTRAL PORTION AND AT LEAST TWO LATERAL PORTIONS, A GROUP OF INEXTENSIBLE LONGITUDINAL CORDS WHOLLY CONFINED WITHIN EACH OF SAID PORTIONS OF SAID TREAD RING AND LYING ON A SURFACE HAVING A SUBSTANTIAL TRANSVERSE BENDING, AND AT LEAST TWO STRIPS OF FABRIC DISPOSED IN SAID TREAD RING IN A RADIALLY OUTERMOST POSITION WITH RESPECT TO SAID CORDS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |