US2905220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self sealing pneumatic tire
Assignee: Bridgestone Firestone Inc
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Filing: 1953-05-13
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Granted: 1959-09-22
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Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Schutz Joseph Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:16
CPC Classifications
B; B60; B60C; B60C19/00; B60C19/12; B60C19/122; B29; B29C; B29C73/00; B29C73/16; B29C73/163; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/0685; B60C19/127; B29C73/22; B29D2030/0686; B29D2030/0687; B29D2030/0691; B29L; B29L2030/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10666; Y10T152/10675; Y10T152/10684; Y10T152/10702
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
IN A PNEUMATIC TIRE THE COMBINATION OF AN INNER SUBSTANTIALLY AIR IMPERVIOUS LINER ELEMENT COMPRISED OF NATURAL RUBBER AND ADHERED TO THE INNER SURFACE OF SAID LINER A PUNCTURE SEALING MEMBER COMPRISED OF A COPOLYMER OF AN OPEN CHAIN CONJUGATED DIOLEFIN WITH AN ARYL SUBSTITUTED ETHYLENE MONOMER COPOLYMERIZED AT A TEMPERATURE OF 14*F. TO 58*F., HAVING AT LEAST 25 PARTS OF SOFTENER BASED ON 100 PARTS BY WEIGHT OF COPOLYMER ADDED TO THE COPOLYMER IN THE LATEX STAGE AND AT LEAST
References Cited (Backward Citations)
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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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |