Patent US2888337A successfully refreshed from Google Patents.
US2888337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of hydrocarbon oil heavier than gasoline
Assignee: Universal Oil Products Co
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Filing: 1955-09-19
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Granted: 1959-05-26
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Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
HYDROCARBON OIL HEAVIER THAN GASOLINE NORMALLY SUBJECT TO DETERIORATION IN STORAGE CONTAINING, IN SUFFICIENT AMOUNT TO RETARD SAID DETERIORATION, A 1,3-DIAZINE HAVING AN AMINO SUBSTITUENT ATTACHED TO THE 2 CARBON ATOMS, SAID DIAZINE CONSISTING OF CARBON, HYDROGEN AND NITROGEN.
Claim 2
Dependent Claim
39 words
HYDROCARBON OIL HEAVIER THAN GASOLINE NORMALLY SUBJECT TO DETERIORATION IN STORAGE CONTAINING, IN SUFFICIENT AMOUNT TO RETARD SAID DETERIORATION, A 1,3-DIAZINE HAVING AN AMINO SUBSTITUENT ATTACHED TO THE 2 CARBON ATOMS, SAID DIAZINE CONSISTING OF CARBON, HYDROGEN AND NITROGEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |