Patent US3143450A successfully refreshed from Google Patents.
US3143450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of pneumatic tires
Assignee: Sumitomo Rubber USA LLC
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Filing: 1958-12-24
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Granted: 1964-08-04
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Barber Ronald Jesse
- 👤 Lowe Jack Milner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:12
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/52; B29D30/58; B29D30/66; B29D2030/662
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD FOR THE MANUFACTURE OF PNEUMATIC TIRES WHICH COMPRISES MOLDING AN ANNULOUS OF UNVULCANIZED TREAD COMPOSITION RADIALLY OUTWARDLY INTO A TREAD MOLDING RING HAVING AN INNER SURFACE INDENTED WITH A TREAD MOLDING PATTERN, PLACING AN ANNULAR BREAKER SYMMETRICALLY AND COAXIALLY WITHIN AND IN CONTACT WITH THE INNER SURFACE OF SAID ANNULUS OF UNVULCANIZED TREAD COMPOSITION IN SAID MOLDING RING, PLACING SID ASSEMBLY OF TREAD ANNULUS AND BREAKER COAXIALLY AND SYMMETRICALLY ABOUT AN UNVULCANIZED CARCASS ON AN EXPANSIBLE BUILDING SURFACE, EXPANDING SAID BUILDING SURFACE AND CARCASS INTO UNION WITH SAID BREAKER STRIP AND MOLDING AND VULCANIZING SAID ASSEMBLY OF CARCASS, BREAKER AND ANNULUS.
Claim 2
Independent Claim
103 words
A METHOD FOR THE MANUFACTURE OF PNEUMATIC TIRES WHICH COMPRISES MOLDING AN ANNULOUS OF UNVULCANIZED TREAD COMPOSITION RADIALLY OUTWARDLY INTO A TREAD MOLDING RING HAVING AN INNER SURFACE INDENTED WITH A TREAD MOLDING PATTERN, PLACING AN ANNULAR BREAKER SYMMETRICALLY AND COAXIALLY WITHIN AND IN CONTACT WITH THE INNER SURFACE OF SAID ANNULUS OF UNVULCANIZED TREAD COMPOSITION IN SAID MOLDING RING, PLACING SID ASSEMBLY OF TREAD ANNULUS AND BREAKER COAXIALLY AND SYMMETRICALLY ABOUT AN UNVULCANIZED CARCASS ON AN EXPANSIBLE BUILDING SURFACE, EXPANDING SAID BUILDING SURFACE AND CARCASS INTO UNION WITH SAID BREAKER STRIP AND MOLDING AND VULCANIZING SAID ASSEMBLY OF CARCASS, BREAKER AND ANNULUS.
References Cited (Backward Citations)
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US2139840A
Cited
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Cited
US2614056A
Cited
US2649891A
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Cited
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |