US3837969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a tire building sleeve and said sleeve
Assignee: Goodyear Tire and Rubber Co
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Filing: 1972-03-29
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Granted: 1974-09-24
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Expires: 1992-03-29
Abstract
Abstract THIS INVENTION RELATES TO A METHOD OF MAKING SLEEVES OR BLADDER FOR TIRE BUILDING MACHINES FOR BUILDING BIAS ANGLE TIRES, BIAS BELTED TIRES OR RADIAL PLY BELTED TIRES BY BUILDING THE CORE OF THE SLEEVES OF NATURAL RUBBER, HIGH CIS POLYBUTADIENE, HIGH CIS POLYISOPRENE, ACRYLONITRILEBUTADIENE AND BUTADIENE STYRENE, AND COVERING THE OUTSIDE OF THE CORE AND AT LEAST PART OF THE INSIDE THEREOF WITH A LAYER OF POLYURETHANE ELASTOMER.
Inventors
- 👤 S Mezynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:18
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/26; B29C; B29C33/00; B29C33/38; B29C33/40; B29C33/405; B29C33/44; B29C33/48; B29C33/50; B29C43/00; B29C43/32; B29C43/36; B29C43/3642; B29L; B29L2022/00; B29L2022/02; B29L2022/025; B29L2030/00
Claims Analysis
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |