Patent US3565857A successfully refreshed from Google Patents.
US3565857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Age resisters for polymers
Assignee: Goodyear Tire and Rubber Co
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Filing: 1967-08-31
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Granted: 1971-02-23
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Expires: 1987-08-31
Abstract
Abstract ALKYLTHIO SUBSTITUTED POLYNUCLEAR PHENOLIC AGE REGISTERS AND AGE RESISTANT POLYMERS CONTAINING SAID AGE RESISTERS.
Inventors
- 👤 Ronald B Spacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |