US3157218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tires having improved treads
Assignee: Goodyear Tire and Rubber Co
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Filing: 1962-08-30
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Granted: 1964-11-17
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert J Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:47
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/0061; B60; B60C; B60C1/00; B60C1/0016; B60C11/00; B60C11/0041; B60C11/005; B60C11/14; B60C11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PNEUMATIC VEHICLE TIRE HAVING A TREAD CHARACTERIZED BY (1) AN OUTER ROAD-CONTACTING CAP COMPRISED OF FROM 20 TO 75% BY WEIGHT OF A RUBBERY STOCK OF POLYBUTADIENT HAVING AT LEAST ABOUT 30% OF ITS POLYMERIZED MONOMER UNITS IN A CIS-1,4 CONFIGURATION AND NO MORE THAN BOUT 15% OF ITS MONOMER UNITS POLYMERIZED THROUGH 1,2 ADDITION, AND FROM 80 TO 25% BY WEIGHT OF A RUBBERY STOCK OF AN ELASTOMERIC COPOLYMER OF BUTADIENE AND STYRENE AND (2) A BASE PORTION UNDERLYING SAID ROAD-CONTACTING CAP COMPRISED OF FROM 20 TO 75% BY WEIGHT OF A RUBBERY STOCK OF POLYBUTADIENE HAVING AT LEAST ABOUT 30% OF ITS POLYMERIZED MONOMER UNITS IN A CIS-1,4 CONFIGURATION AND NO MORE THAN ABOUT 15% OF ITS MONOMER UNITS POLYMERIZED THROUGH 1,2 ADDITION AND FROM 80 TO 25% BY WEIGHT OF A RUBBERY STOCK OF
Claim 2
Dependent Claim
138 words
A PNEUMATIC VEHICLE TIRE HAVING A TREAD CHARACTERIZED BY (1) AN OUTER ROAD-CONTACTING CAP COMPRISED OF FROM 20 TO 75% BY WEIGHT OF A RUBBERY STOCK OF POLYBUTADIENT HAVING AT LEAST ABOUT 30% OF ITS POLYMERIZED MONOMER UNITS IN A CIS-1,4 CONFIGURATION AND NO MORE THAN BOUT 15% OF ITS MONOMER UNITS POLYMERIZED THROUGH 1,2 ADDITION, AND FROM 80 TO 25% BY WEIGHT OF A RUBBERY STOCK OF AN ELASTOMERIC COPOLYMER OF BUTADIENE AND STYRENE AND (2) A BASE PORTION UNDERLYING SAID ROAD-CONTACTING CAP COMPRISED OF FROM 20 TO 75% BY WEIGHT OF A RUBBERY STOCK OF POLYBUTADIENE HAVING AT LEAST ABOUT 30% OF ITS POLYMERIZED MONOMER UNITS IN A CIS-1,4 CONFIGURATION AND NO MORE THAN ABOUT 15% OF ITS MONOMER UNITS POLYMERIZED THROUGH 1,2 ADDITION AND FROM 80 TO 25% BY WEIGHT OF A RUBBERY STOCK OF
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |