Patent US3577211A successfully refreshed from Google Patents.
US3577211A
Expired / Lapsed
US
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Stabilization of polyesters
Assignee: Goodyear Tire and Rubber Co
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Filing: 1967-05-22
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Granted: 1971-05-04
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Expires: 1987-05-22
Abstract
Abstract THIS INVENTION RELATES TO THE PROCESS IN WHICH AN ORGANIC POLYMERIC STRUCTURE IS TREATED WITH A POLYACID CHLORIDE AND THEN WITH A REACTIVE ULTRAVIOLET LIGHT STABILIZER TO FORM A-STRUCTURE HAVING A CHEMICALLY BONDED STABILIZER.
Inventors
- 👤 Warren K Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:46
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/132; D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M13/127; D06M13/184; D06M13/192
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |