US3661825A
Expired / Lapsed
US
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Stabilization systems for polymers
Assignee: Goodyear Tire and Rubber Co
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Filing: 1970-04-21
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Granted: 1972-05-09
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Expires: 1990-04-21
Abstract
Abstract STABILIZER SYSTEMS FOR POLYMERS CONTAINING DIVINYL BENZENE (DVB) COMPRISING CERTAIN PHENOLIC STABILIZERS, EPOXY POLYVINYL CHLORIDE STABILIZERS AND OTHER POLYVINYLCHLORIDE STABILIZERS SUCH AS THE ORGANO-TIN TYPES.
Inventors
- 👤 James W Horvath
- 👤 Charles A Markley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:37
CPC Classifications
C; C08; C08L; C08L9/00; C08K; C08K5/00; C08K5/0008; C08K5/005; C08K5/04; C08K5/13; C08K5/36; C08K5/37; C08K5/375
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |