Patent US2039915A successfully refreshed from Google Patents.
Patent US3311151A successfully refreshed from Google Patents.
US3311151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Bridgestone Firestone Inc
•
Filing: 1966-05-23
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Granted: 1967-03-28
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Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 James M Willis
- 👤 Ronald L Denecour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:25
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/007; B60C1/00; Y; Y10; Y10S; Y10S152/00; Y10S152/905; Y10S156/00; Y10S156/91; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A PNEUMATIC TIRE COMPRISING A VULCANIZED RUBBER BODY PORTION INCLUDING REINFORCING ELEMENTS EMBEDDED THEREIN AND TERMINATING AT ITS TWO EDGES IN TWO INEXTENSIBLE BEADS, A VULCANIZED RUBBER TREAD PORTION OVER-LYING AND BONDED TO SAID BODY PORTION, AND A PAIR OF INTEGRAL VULCANIZED RUBBER SIDEWALL PORTIONS EXTENDING FROM RESPECTIVE EDGES OF THE TREAD PORTION ALONG THE BODY PORTION TO WHICH THEY ARE BONDED TO THE RESPECTIVE BEADS, THE IMPROVEMENT WHICH COMPRISES AT LEAST ONE OF SAID RUBBER PORTIOS FORMED FROM A BLEND OF AN ELASTOMERIC TERPOLYMER INCLUDING POLYMER UNITS DERIVED FROM ETHYLENE, PROPYLENE AND A NON-CONJUGATED DIENE AND A BUTYLRUBBER, SAID TERPOLYMER INCLUDING PROPYLENE IN AN AMOUNT RANGING FROM ABOUT 30 TO ABOUT 70 MOLE PERCENT, THE BALANCE BEING ETHYLENE AND THE NON-CONJUGATED DIENE, SAID TERPOLYMER HAVING A MOONEY VISCOSITY OF AT LEAST ABOUT 50 (ML-4/212*F).
Claim 2
Dependent Claim
136 words
IN A PNEUMATIC TIRE COMPRISING A VULCANIZED RUBBER BODY PORTION INCLUDING REINFORCING ELEMENTS EMBEDDED THEREIN AND TERMINATING AT ITS TWO EDGES IN TWO INEXTENSIBLE BEADS, A VULCANIZED RUBBER TREAD PORTION OVER-LYING AND BONDED TO SAID BODY PORTION, AND A PAIR OF INTEGRAL VULCANIZED RUBBER SIDEWALL PORTIONS EXTENDING FROM RESPECTIVE EDGES OF THE TREAD PORTION ALONG THE BODY PORTION TO WHICH THEY ARE BONDED TO THE RESPECTIVE BEADS, THE IMPROVEMENT WHICH COMPRISES AT LEAST ONE OF SAID RUBBER PORTIOS FORMED FROM A BLEND OF AN ELASTOMERIC TERPOLYMER INCLUDING POLYMER UNITS DERIVED FROM ETHYLENE, PROPYLENE AND A NON-CONJUGATED DIENE AND A BUTYLRUBBER, SAID TERPOLYMER INCLUDING PROPYLENE IN AN AMOUNT RANGING FROM ABOUT 30 TO ABOUT 70 MOLE PERCENT, THE BALANCE BEING ETHYLENE AND THE NON-CONJUGATED DIENE, SAID TERPOLYMER HAVING A MOONEY VISCOSITY OF AT LEAST ABOUT 50 (ML-4/212*F).
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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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |