US3378602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire cord prepared from block copolymers of polyamides and polyesters
Assignee: Bridgestone Firestone Inc
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Filing: 1967-02-16
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Granted: 1968-04-16
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Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 James J Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0042; C; C08; C08G; C08G69/00; C08G69/44; C08L; C08L67/00; C08L67/02; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10522; Y10T152/10531; Y10T152/1054; Y10T152/10549
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2623031A
Cited
US2755214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |