US2825382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Uniroyal Inc
•
Filing: 1954-03-12
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Granted: 1958-03-04
•
Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Lester C Peterson
- 👤 Harvey J Batts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:28
CPC Classifications
B; B60; B60C; B60C1/00; B60C1/0008; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A VULCANIZED TUBELESS PNEUMATIC RUBBER TIRE COMPRISING A MULTI-PLY RUBBERIZED FABRIC CARCASS WITH SURROUNDING SIDEWALL AND TREAD PORTIONS AND HAVING AN INTERIOR AIR-RETAINING LINEAR SECURED DIRECTLY TO ITS INNERMOST PLY BY VULCANIZATION IN SITU, SAID LINER EXTENDING OVER SUBSTANTIALLY THE ENTIRE INNER PORTION OF SAID CARCASS AND BEING FORMED OF A CONTINUOUS BODY OF A VULCANIZED MIXTURE COMPRISING ABOUT 0.8 PART BY WEIGHT OF SULFUR AND 100 PARTS BY WEIGHT OF A MIXTURE OF ELASTIC RUBBERY POLYISOBUTYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 80,000 BUT NOR OVER 400,000 AND AN ELASTOMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND BUTADIENE-STYRENE RUBBERY COPOLYMER IN RELATIVE PROPORTIONS OF FROM 50 TO 70% OF SAID POLYISOBUTYLENE AND CORRESPONDINGLY FROM 50 TO 30% OF SAID ELASTOMER, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE SUM OF SAID POLYISOBUTYLENE AND SAID ELASTOMER, SAID LINER HAVING GOOD AIR RETENTION PROPERTIES, HAVIN HIGH RESISTANCE TO FLEXCRACKING AND EXHIBITING SUBSTANTIALLY NO HOLE GROWTH IN 100,000 FLEX-CYCLES IN THE DE MATTIA FLEX TEST.
Claim 2
Dependent Claim
167 words
A VULCANIZED TUBELESS PNEUMATIC RUBBER TIRE COMPRISING A MULTI-PLY RUBBERIZED FABRIC CARCASS WITH SURROUNDING SIDEWALL AND TREAD PORTIONS AND HAVING AN INTERIOR AIR-RETAINING LINEAR SECURED DIRECTLY TO ITS INNERMOST PLY BY VULCANIZATION IN SITU, SAID LINER EXTENDING OVER SUBSTANTIALLY THE ENTIRE INNER PORTION OF SAID CARCASS AND BEING FORMED OF A CONTINUOUS BODY OF A VULCANIZED MIXTURE COMPRISING ABOUT 0.8 PART BY WEIGHT OF SULFUR AND 100 PARTS BY WEIGHT OF A MIXTURE OF ELASTIC RUBBERY POLYISOBUTYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 80,000 BUT NOR OVER 400,000 AND AN ELASTOMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND BUTADIENE-STYRENE RUBBERY COPOLYMER IN RELATIVE PROPORTIONS OF FROM 50 TO 70% OF SAID POLYISOBUTYLENE AND CORRESPONDINGLY FROM 50 TO 30% OF SAID ELASTOMER, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE SUM OF SAID POLYISOBUTYLENE AND SAID ELASTOMER, SAID LINER HAVING GOOD AIR RETENTION PROPERTIES, HAVIN HIGH RESISTANCE TO FLEXCRACKING AND EXHIBITING SUBSTANTIALLY NO HOLE GROWTH IN 100,000 FLEX-CYCLES IN THE DE MATTIA FLEX TEST.
References Cited (Backward Citations)
US2218167A
Cited
US2451865A
Cited
US2566384A
Cited
US2566328A
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FR1020822A
Cited
US2676636A
Cited
US2698042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |