Patent US5236481A successfully refreshed from Google Patents.
Patent US3614864A successfully refreshed from Google Patents.
US3614864A
Expired / Lapsed
US
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Two-ply polyamide tire cord
Assignee: Glanzstoff AG
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Filing: 1969-11-21
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Granted: 1971-10-26
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Expires: 1989-11-21
Abstract
Abstract A TWO-PLY NYLON TIRE CORD IN WHICH THE INDIVIDUAL PLIES ARE PRETWEISTED IN THE DIRECTION OPPOSITE TO THE AFTER-TWIST OF THE PLIES IN THE FINISHED CORD, THE PRETWIST BEING AT LEAST 200 TURNS/METER GREATER THAN THE AFTER-TWIST WHICH SHOULD PROVIDE A TWIST FACTOR AM OF ABOUT 60 TO 140. A PLURALITY OF SUCH TWO PLY CORDS ARE ASSEMBLED INTO A RUBBER TIRE STRUCTURE TO PROVIDE IMPROVED PERFORMANCE CHARACTERISTICS.
Inventors
- 👤 Berthold Daimler
- 👤 Berd Jacobi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:38
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/48; D02G3/22; D02G3/26; D02G3/28; D10; D10B; D10B2331/00; D10B2331/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |