Patent US3288748A successfully refreshed from Google Patents.
US3288748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of olefin polymers with nu-hydrocarbyl-alkanolamines
Assignee: Universal Oil Products Co
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Filing: 1963-06-27
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Granted: 1966-11-29
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Henry A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:11
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
OLEFIN POLYMER NORMALLY SUBJECT TO DETERIORATION DUE TO ULTRAVIOLET LIGHT CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A STABILIZING CONCENTRATION OF AN NHYDROCARBYL-ALKANOLAMINE INHIBITOR IN WHICH SAID HYDROCARBYL CONTAINS AT LEAST FOUR CARBON ATOMS.
Claim 2
Dependent Claim
34 words
OLEFIN POLYMER NORMALLY SUBJECT TO DETERIORATION DUE TO ULTRAVIOLET LIGHT CONTAINING, AS AN INHIBITOR AGAINST SAID DETERIORATION, A STABILIZING CONCENTRATION OF AN NHYDROCARBYL-ALKANOLAMINE INHIBITOR IN WHICH SAID HYDROCARBYL CONTAINS AT LEAST FOUR CARBON ATOMS.
References Cited (Backward Citations)
DE1025139B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |