Patent US3637587A successfully refreshed from Google Patents.
US3637587A
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US
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Stabilization of organic substance with n n-disubstituted-aminoalkyl phosphite
Assignee: Universal Oil Products Co
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Filing: 1969-03-25
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Granted: 1972-01-25
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Expires: 1989-03-25
Abstract
Abstract STABILIZING ORGANIC SUBSTANCE BY INCORPORATING THEREIN THE STABILIZING CONCENTRATION OF AN N,N-DIALKYLAMINOALKYL PHOSPHITE OR N,N-DICYCLOALKYL-AMINOALKYL PHOSPHITE. ONE EXAMPLE IS THE STABILIZING OF PLASTICS AND ANOTHER EXAMPLE IS THE STABILIZATION OF HYDROCARBON DISTILLATES.
Inventors
- 👤 Henryk A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |