Patent US2905220A successfully refreshed from Google Patents.
US2905220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self sealing pneumatic tire
Assignee: Bridgestone Firestone Inc
•
Filing: 1953-05-13
•
Granted: 1959-09-22
•
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
2026-11-07 21:27
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)
US2406903A
Cited
US2576968A
Cited
US2587470A
Cited
US2649425A
Cited
US2664936A
Cited
US2606884A
Cited
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 |